diff --git a/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm b/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
index dd4492d7e0069..da64123432f93 100644
--- a/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
+++ b/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
@@ -589,7 +589,7 @@ - (BOOL)hasText {
 }
 
 - (void)insertText:(NSString*)text {
-  _selectionAffinity = _kTextAffinityUpstream;
+  _selectionAffinity = _kTextAffinityDownstream;
   [self replaceRange:_selectedTextRange withText:text];
 }