diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/.babelrc b/__tests__/__fixtures__/dotenv-flow-explicit-local/.babelrc
new file mode 100644
index 0000000..2665d2e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/.babelrc
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    ["../../../", {
+      "path": "__tests__/__fixtures__/dotenv-flow/.env"
+    }]
+  ]
+}
diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/.env b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env
new file mode 100644
index 0000000..75a4caf
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env
@@ -0,0 +1 @@
+API_KEY=default-key
diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.development b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.development
new file mode 100644
index 0000000..360db36
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.development
@@ -0,0 +1 @@
+API_KEY=development-key
diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.development.local b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.development.local
new file mode 100644
index 0000000..a013e01
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.development.local
@@ -0,0 +1 @@
+API_KEY=development-local-key
diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.local b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.local
new file mode 100644
index 0000000..1b61c79
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.local
@@ -0,0 +1 @@
+API_KEY=local-key
diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.production b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.production
new file mode 100644
index 0000000..ef4d895
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/.env.production
@@ -0,0 +1 @@
+API_KEY=production-key
diff --git a/__tests__/__fixtures__/dotenv-flow-explicit-local/source.js b/__tests__/__fixtures__/dotenv-flow-explicit-local/source.js
new file mode 100644
index 0000000..33c545e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-explicit-local/source.js
@@ -0,0 +1,3 @@
+import {API_KEY} from '@env'
+
+console.log(API_KEY)
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/.babelrc b/__tests__/__fixtures__/dotenv-flow-mode-local/.babelrc
new file mode 100644
index 0000000..2665d2e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/.babelrc
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    ["../../../", {
+      "path": "__tests__/__fixtures__/dotenv-flow/.env"
+    }]
+  ]
+}
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/.env b/__tests__/__fixtures__/dotenv-flow-mode-local/.env
new file mode 100644
index 0000000..75a4caf
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/.env
@@ -0,0 +1 @@
+API_KEY=default-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/.env.development b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.development
new file mode 100644
index 0000000..360db36
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.development
@@ -0,0 +1 @@
+API_KEY=development-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/.env.development.local b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.development.local
new file mode 100644
index 0000000..a013e01
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.development.local
@@ -0,0 +1 @@
+API_KEY=development-local-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/.env.local b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.local
new file mode 100644
index 0000000..1b61c79
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.local
@@ -0,0 +1 @@
+API_KEY=local-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/.env.production b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.production
new file mode 100644
index 0000000..ef4d895
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/.env.production
@@ -0,0 +1 @@
+API_KEY=production-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode-local/source.js b/__tests__/__fixtures__/dotenv-flow-mode-local/source.js
new file mode 100644
index 0000000..33c545e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode-local/source.js
@@ -0,0 +1,3 @@
+import {API_KEY} from '@env'
+
+console.log(API_KEY)
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/.babelrc b/__tests__/__fixtures__/dotenv-flow-mode/.babelrc
new file mode 100644
index 0000000..2665d2e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/.babelrc
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    ["../../../", {
+      "path": "__tests__/__fixtures__/dotenv-flow/.env"
+    }]
+  ]
+}
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/.env b/__tests__/__fixtures__/dotenv-flow-mode/.env
new file mode 100644
index 0000000..75a4caf
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/.env
@@ -0,0 +1 @@
+API_KEY=default-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/.env.development b/__tests__/__fixtures__/dotenv-flow-mode/.env.development
new file mode 100644
index 0000000..360db36
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/.env.development
@@ -0,0 +1 @@
+API_KEY=development-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/.env.development.local b/__tests__/__fixtures__/dotenv-flow-mode/.env.development.local
new file mode 100644
index 0000000..a013e01
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/.env.development.local
@@ -0,0 +1 @@
+API_KEY=development-local-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/.env.local b/__tests__/__fixtures__/dotenv-flow-mode/.env.local
new file mode 100644
index 0000000..1b61c79
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/.env.local
@@ -0,0 +1 @@
+API_KEY=local-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/.env.production b/__tests__/__fixtures__/dotenv-flow-mode/.env.production
new file mode 100644
index 0000000..ef4d895
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/.env.production
@@ -0,0 +1 @@
+API_KEY=production-key
diff --git a/__tests__/__fixtures__/dotenv-flow-mode/source.js b/__tests__/__fixtures__/dotenv-flow-mode/source.js
new file mode 100644
index 0000000..33c545e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow-mode/source.js
@@ -0,0 +1,3 @@
+import {API_KEY} from '@env'
+
+console.log(API_KEY)
diff --git a/__tests__/__fixtures__/dotenv-flow/.babelrc b/__tests__/__fixtures__/dotenv-flow/.babelrc
new file mode 100644
index 0000000..2665d2e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/.babelrc
@@ -0,0 +1,7 @@
+{
+  "plugins": [
+    ["../../../", {
+      "path": "__tests__/__fixtures__/dotenv-flow/.env"
+    }]
+  ]
+}
diff --git a/__tests__/__fixtures__/dotenv-flow/.env b/__tests__/__fixtures__/dotenv-flow/.env
new file mode 100644
index 0000000..75a4caf
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/.env
@@ -0,0 +1 @@
+API_KEY=default-key
diff --git a/__tests__/__fixtures__/dotenv-flow/.env.development b/__tests__/__fixtures__/dotenv-flow/.env.development
new file mode 100644
index 0000000..360db36
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/.env.development
@@ -0,0 +1 @@
+API_KEY=development-key
diff --git a/__tests__/__fixtures__/dotenv-flow/.env.development.local b/__tests__/__fixtures__/dotenv-flow/.env.development.local
new file mode 100644
index 0000000..a013e01
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/.env.development.local
@@ -0,0 +1 @@
+API_KEY=development-local-key
diff --git a/__tests__/__fixtures__/dotenv-flow/.env.local b/__tests__/__fixtures__/dotenv-flow/.env.local
new file mode 100644
index 0000000..1b61c79
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/.env.local
@@ -0,0 +1 @@
+API_KEY=local-key
diff --git a/__tests__/__fixtures__/dotenv-flow/.env.production b/__tests__/__fixtures__/dotenv-flow/.env.production
new file mode 100644
index 0000000..ef4d895
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/.env.production
@@ -0,0 +1 @@
+API_KEY=production-key
diff --git a/__tests__/__fixtures__/dotenv-flow/source.js b/__tests__/__fixtures__/dotenv-flow/source.js
new file mode 100644
index 0000000..33c545e
--- /dev/null
+++ b/__tests__/__fixtures__/dotenv-flow/source.js
@@ -0,0 +1,3 @@
+import {API_KEY} from '@env'
+
+console.log(API_KEY)
diff --git a/__tests__/index.test.js b/__tests__/index.test.js
index 17b5b3a..ee29ae9 100644
--- a/__tests__/index.test.js
+++ b/__tests__/index.test.js
@@ -198,4 +198,30 @@ describe('react-native-dotenv', () => {
     const {code} = transformFileSync(FIXTURES + 'env-name/source.js')
     expect(code).toBe('console.log("abc123456");\nconsole.log("username123456");')
   })
+
+  it('should follow dotenv-flow variable precedence (default)', () => {
+    const {code} = transformFileSync(FIXTURES + 'dotenv-flow/source.js')
+    expect(code).toBe('console.log("local-key");')
+  })
+
+  it('should follow dotenv-flow variable precedence (mode)', () => {
+    process.env.NODE_ENV = 'production'
+
+    const {code} = transformFileSync(FIXTURES + 'dotenv-flow-mode/source.js', {})
+    expect(code).toBe('console.log("production-key");')
+  })
+
+  it('should follow dotenv-flow variable precedence (mode local)', () => {
+    process.env.NODE_ENV = 'development'
+
+    const {code} = transformFileSync(FIXTURES + 'dotenv-flow-mode-local/source.js', {})
+    expect(code).toBe('console.log("development-local-key");')
+  })
+
+  it('should follow dotenv-flow variable precedence (explicit local)', () => {
+    process.env.NODE_ENV = 'local'
+
+    const {code} = transformFileSync(FIXTURES + 'dotenv-flow-explicit-local/source.js', {})
+    expect(code).toBe('console.log("local-key");')
+  })
 })
diff --git a/index.js b/index.js
index e2a360d..d172805 100644
--- a/index.js
+++ b/index.js
@@ -57,7 +57,6 @@ function mtime(filePath) {
 
 module.exports = (api, options) => {
   const t = api.types
-  let env = {}
   options = {
     envName: 'APP_ENV',
     moduleName: '@env',
@@ -93,8 +92,15 @@ module.exports = (api, options) => {
   const localParsed = parseDotenvFile(localFilePath, options.verbose)
   const modeParsed = parseDotenvFile(modeFilePath, options.verbose)
   const modeLocalParsed = parseDotenvFile(modeLocalFilePath, options.verbose)
-  env = (options.safe) ? safeObjectAssign(undefObjectAssign(undefObjectAssign(undefObjectAssign(parsed, modeParsed), localParsed), modeLocalParsed), dotenvTemporary, ['NODE_ENV', 'BABEL_ENV', options.envName])
-    : undefObjectAssign(undefObjectAssign(undefObjectAssign(undefObjectAssign(parsed, modeParsed), localParsed), modeLocalParsed), dotenvTemporary)
+
+  let env = parsed
+  env = undefObjectAssign(env, localParsed)
+  env = undefObjectAssign(env, modeParsed)
+  env = undefObjectAssign(env, modeLocalParsed)
+
+  env = options.safe ?
+    safeObjectAssign(env, dotenvTemporary, ['NODE_ENV', 'BABEL_ENV', options.envName]) :
+    undefObjectAssign(env, dotenvTemporary)
 
   api.addExternalDependency(path.resolve(options.path))
   api.addExternalDependency(path.resolve(modeFilePath))