diff --git a/IDE/src/IDEApp.bf b/IDE/src/IDEApp.bf
index 2f87d168..e08ae004 100644
--- a/IDE/src/IDEApp.bf
+++ b/IDE/src/IDEApp.bf
@@ -678,7 +678,7 @@ namespace IDE
 			for (var val in mWindowDatas.Values)
 				delete val;
 
-			if (mErrorsPanel.mParent != null)
+			if (mErrorsPanel?.mParent != null)
 				mErrorsPanel.RemoveSelf();
 
 			ProcessIdleDeferredDeletes();