diff --git a/packages/flutter/lib/src/material/ink_well.dart b/packages/flutter/lib/src/material/ink_well.dart
index 176339d..7ee703b 100644
--- a/packages/flutter/lib/src/material/ink_well.dart
+++ b/packages/flutter/lib/src/material/ink_well.dart
@@ -172,7 +172,7 @@
     BorderRadius? borderRadius,
     ShapeBorder? customBorder,
     double? radius,
-    required VoidCallback? onRemoved,
+    VoidCallback? onRemoved,
   });
 }