diff --git a/cmake/ios/Info.plist.app.in b/cmake/ios/Info.plist.app.in
index abaf3418db5..2f138282130 100644
--- a/cmake/ios/Info.plist.app.in
+++ b/cmake/ios/Info.plist.app.in
@@ -31,6 +31,8 @@
 
     <key>CFBundleDevelopmentRegion</key>
     <string>$(DEVELOPMENT_LANGUAGE)</string>
+    <key>CFBundleAllowMixedLocalizations</key>
+    <true/>
 
     <key>LSRequiresIPhoneOS</key>
     <true/>
diff --git a/cmake/macos/MacOSXBundleInfo.plist.in b/cmake/macos/MacOSXBundleInfo.plist.in
index 75de15ab50f..c7915216551 100644
--- a/cmake/macos/MacOSXBundleInfo.plist.in
+++ b/cmake/macos/MacOSXBundleInfo.plist.in
@@ -30,6 +30,8 @@
 
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleAllowMixedLocalizations</key>
+	<true/>
 
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
diff --git a/mkspecs/macx-clang/Info.plist.app b/mkspecs/macx-clang/Info.plist.app
index 9aca41b6dd9..e37d8975f85 100644
--- a/mkspecs/macx-clang/Info.plist.app
+++ b/mkspecs/macx-clang/Info.plist.app
@@ -22,5 +22,7 @@
 	<true/>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleAllowMixedLocalizations</key>
+	<true/>
 </dict>
 </plist>
diff --git a/mkspecs/macx-ios-clang/Info.plist.app b/mkspecs/macx-ios-clang/Info.plist.app
index 76b5bc1b2ad..56c1e1900c4 100644
--- a/mkspecs/macx-ios-clang/Info.plist.app
+++ b/mkspecs/macx-ios-clang/Info.plist.app
@@ -37,6 +37,8 @@
 
     <key>CFBundleDevelopmentRegion</key>
     <string>$(DEVELOPMENT_LANGUAGE)</string>
+    <key>CFBundleAllowMixedLocalizations</key>
+    <true/>
 
     <key>UISupportedInterfaceOrientations</key>
     <array>
diff --git a/mkspecs/macx-xcode/QtTest.plist b/mkspecs/macx-xcode/QtTest.plist
index 41dddb1a535..9ee08217efb 100644
--- a/mkspecs/macx-xcode/QtTest.plist
+++ b/mkspecs/macx-xcode/QtTest.plist
@@ -4,6 +4,8 @@
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleAllowMixedLocalizations</key>
+	<true/>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
diff --git a/mkspecs/unsupported/macx-tvos-clang/Info.plist.app b/mkspecs/unsupported/macx-tvos-clang/Info.plist.app
index b9b67fe41e9..e94aeb5b929 100644
--- a/mkspecs/unsupported/macx-tvos-clang/Info.plist.app
+++ b/mkspecs/unsupported/macx-tvos-clang/Info.plist.app
@@ -4,6 +4,8 @@
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleAllowMixedLocalizations</key>
+	<true/>
 	<key>CFBundleDisplayName</key>
 	<string>${PRODUCT_NAME}</string>
 	<key>CFBundleExecutable</key>
diff --git a/mkspecs/unsupported/macx-watchos-clang/Info.plist.app b/mkspecs/unsupported/macx-watchos-clang/Info.plist.app
index 5ac0ef78a08..72c2af30b1c 100644
--- a/mkspecs/unsupported/macx-watchos-clang/Info.plist.app
+++ b/mkspecs/unsupported/macx-watchos-clang/Info.plist.app
@@ -4,6 +4,8 @@
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleAllowMixedLocalizations</key>
+	<true/>
 	<key>CFBundleDisplayName</key>
 	<string>${PRODUCT_NAME}</string>
 	<key>CFBundleExecutable</key>
diff --git a/tests/manual/ios_assets/Info.ios.cmake.plist b/tests/manual/ios_assets/Info.ios.cmake.plist
index 3bb6f562ee5..2b2bb695226 100644
--- a/tests/manual/ios_assets/Info.ios.cmake.plist
+++ b/tests/manual/ios_assets/Info.ios.cmake.plist
@@ -34,6 +34,8 @@
 
     <key>CFBundleDevelopmentRegion</key>
     <string>en</string>
+    <key>CFBundleAllowMixedLocalizations</key>
+    <true/>
 
     <key>LSRequiresIPhoneOS</key>
     <true/>