diff --git a/platform/platform-impl/src/com/intellij/platform/ProjectFrameAllocator.kt b/platform/platform-impl/src/com/intellij/platform/ProjectFrameAllocator.kt
index 8bc775236159..738ea6490b93 100644
--- a/platform/platform-impl/src/com/intellij/platform/ProjectFrameAllocator.kt
+++ b/platform/platform-impl/src/com/intellij/platform/ProjectFrameAllocator.kt
@@ -80,13 +80,17 @@ internal class ProjectUiFrameAllocator(val options: OpenProjectTask) : ProjectFr
   }
 
   override fun projectCreated(project: Project) {
-    val frame = frame!!
-    (WindowManager.getInstance() as WindowManagerImpl).assignFrame(frame, project)
+    ApplicationManager.getApplication().invokeLater(
+      {
+        if (!project.isDisposed) {
+          (WindowManager.getInstance() as WindowManagerImpl).assignFrame(frame ?: return@invokeLater, project)
+        }
+      }, ModalityState.any())
   }
 
   override fun projectOpened(project: Project) {
     if (options.sendFrameBack) {
-      frame!!.isAutoRequestFocus = true
+      frame?.isAutoRequestFocus = true
     }
   }
 }
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