diff --git a/lib/widgets/common/magnifier/core/core.dart b/lib/widgets/common/magnifier/core/core.dart
index 735434a42..441fe2c99 100644
--- a/lib/widgets/common/magnifier/core/core.dart
+++ b/lib/widgets/common/magnifier/core/core.dart
@@ -43,7 +43,7 @@ class MagnifierCoreState extends State<MagnifierCore> with TickerProviderStateMi
   Offset _startFocalPoint, _lastViewportFocalPosition;
   double _startScale, _quickScaleLastY, _quickScaleLastDistance;
   bool _doubleTap, _quickScaleMoved;
-  DateTime _lastScaleGestureDate;
+  DateTime _lastScaleGestureDate = DateTime.now();
 
   AnimationController _scaleAnimationController;
   Animation<double> _scaleAnimation;