diff --git a/platform/lang-impl/src/com/intellij/codeInsight/folding/impl/UpdateFoldRegionsOperation.java b/platform/lang-impl/src/com/intellij/codeInsight/folding/impl/UpdateFoldRegionsOperation.java
index d3d159f2df39..3d55ed673c03 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/folding/impl/UpdateFoldRegionsOperation.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/folding/impl/UpdateFoldRegionsOperation.java
@@ -248,7 +248,7 @@ class UpdateFoldRegionsOperation implements Runnable {
   }
 
   private boolean regionCanBeRemovedWhenCollapsed(FoldRegion region) {
-    return Boolean.TRUE.equals(region.getUserData(CAN_BE_REMOVED_WHEN_COLLAPSED)) || isRegionInCaretLine(region);
+    return Boolean.TRUE.equals(region.getUserData(CAN_BE_REMOVED_WHEN_COLLAPSED)) || !region.isValid() || isRegionInCaretLine(region);
   }
 
   private boolean isRegionInCaretLine(FoldRegion region) {