1 files changed, 2 insertions, 0 deletions
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 63484f890225..319ce54196da 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
@@ -378,6 +378,8 @@ public class DocumentationManager extends DockablePopupManager<DocumentationComp
                                  final PsiElement originalElement,
                                  @Nullable final Runnable closeCallback) {
     Project project = getProject(element);
+    if (!project.isOpen()) return;
+
     storeOriginalElement(project, originalElement, element);
 
     myPreviouslyFocused = WindowManagerEx.getInstanceEx().getFocusedComponent(project);