diff --git a/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm b/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
index dd4492d7e0..da64123432 100644
--- a/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
+++ b/engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
@@ -589,7 +589,7 @@ static UIReturnKeyType ToUIReturnKeyType(NSString* inputType) {
 }
 
 - (void)insertText:(NSString*)text {
-  _selectionAffinity = _kTextAffinityUpstream;
+  _selectionAffinity = _kTextAffinityDownstream;
   [self replaceRange:_selectedTextRange withText:text];
 }