diff --git a/platform/platform-api/src/com/intellij/ide/util/treeView/AbstractTreeStructure.java b/platform/platform-api/src/com/intellij/ide/util/treeView/AbstractTreeStructure.java
index 8cb7fb3f2a98..380c76e2351d 100644
--- a/platform/platform-api/src/com/intellij/ide/util/treeView/AbstractTreeStructure.java
+++ b/platform/platform-api/src/com/intellij/ide/util/treeView/AbstractTreeStructure.java
@@ -37,6 +37,7 @@ public abstract class AbstractTreeStructure {
 
   @NotNull
   public static ActionCallback asyncCommitDocuments(@NotNull Project project) {
+    if (project.isDisposed()) return new ActionCallback.Done();
     PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
     if (!documentManager.hasUncommitedDocuments()) {
       return new ActionCallback.Done();