diff --git a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
index 78282e5559d4..c4e9392e8655 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
@@ -174,7 +174,9 @@ public class DocumentationManager extends DockablePopupManager<DocumentationComp
   }
   
   public void setAllowContentUpdateFromContext(boolean allow) {
-    restartAutoUpdate(allow);
+    if (hasActiveDockedDocWindow()) {
+      restartAutoUpdate(allow);
+    }
   }
 
   public void showJavaDocInfoAtToolWindow(@NotNull PsiElement element, @NotNull PsiElement original) {