diff --git a/lib/material_icon/material_icon.dart b/lib/material_icon/material_icon.dart
index a0a09dabf..c42e5827e 100644
--- a/lib/material_icon/material_icon.dart
+++ b/lib/material_icon/material_icon.dart
@@ -15,7 +15,6 @@ const List<String> _flippedIcons = const [
   'arrow_forward',
   'chevron_left',
   'chevron_right',
-  'help_outline',
   'navigate_before',
   'navigate_next',
   'last_page',