diff --git a/platform/platform-api/src/com/intellij/util/ui/ButtonlessScrollBarUI.java b/platform/platform-api/src/com/intellij/util/ui/ButtonlessScrollBarUI.java
index 7c740c9821cb..6f79570d614c 100644
--- a/platform/platform-api/src/com/intellij/util/ui/ButtonlessScrollBarUI.java
+++ b/platform/platform-api/src/com/intellij/util/ui/ButtonlessScrollBarUI.java
@@ -373,12 +373,8 @@ public class ButtonlessScrollBarUI extends BasicScrollBarUI {
     updateAWTMotionListener(true);
 
     Disposer.dispose(myThumbFadeAnimator);
-    myThumbFadeAnimator = null;
-
     Disposer.dispose(myMouseOverScrollbarExpandAnimator);
-    myMouseOverScrollbarExpandAnimator = null;
     Disposer.dispose(myMacScrollbarFadeAnimator);
-    myMacScrollbarFadeAnimator = null;
   }
 
   @Override