diff --git a/platform/lang-impl/src/com/intellij/openapi/fileEditor/impl/text/PsiAwareTextEditorImpl.kt b/platform/lang-impl/src/com/intellij/openapi/fileEditor/impl/text/PsiAwareTextEditorImpl.kt
index 3dd38ba304b3..e67ca3d2752b 100644
--- a/platform/lang-impl/src/com/intellij/openapi/fileEditor/impl/text/PsiAwareTextEditorImpl.kt
+++ b/platform/lang-impl/src/com/intellij/openapi/fileEditor/impl/text/PsiAwareTextEditorImpl.kt
@@ -104,7 +104,7 @@ private class PsiAwareTextEditorComponent(file: VirtualFile, editor: EditorImpl)
   override fun uiDataSnapshot(sink: DataSink) {
     super.uiDataSnapshot(sink)
     val project = editor.project
-    if (project != null) {
+    if (project != null && !project.isDisposed) {
       val lookup = LookupManager.getInstance(project).activeLookup as LookupImpl?
       sink[PlatformDataKeys.DOMINANT_HINT_AREA_RECTANGLE] = lookup?.takeIf { it.isVisible }?.bounds
     }