diff --git a/flutter/lib/consts.dart b/flutter/lib/consts.dart
index 41c0634a3..7ad3e7b26 100644
--- a/flutter/lib/consts.dart
+++ b/flutter/lib/consts.dart
@@ -29,7 +29,7 @@ const kDefaultScrollAmountMultiplier = 5.0;
 const kDefaultScrollDuration = Duration(milliseconds: 50);
 const kDefaultMouseWheelThrottleDuration = Duration(milliseconds: 50);
 const kFullScreenEdgeSize = 0.0;
-const kWindowEdgeSize = 5.0;
+const kWindowEdgeSize = 1.0;
 
 const kInvalidValueStr = "InvalidValueStr";