diff --git a/packages/editor-ui/src/components/CodeNodeEditor/linter.ts b/packages/editor-ui/src/components/CodeNodeEditor/linter.ts
index 85343e3615593..f1fe9db6d4fcd 100644
--- a/packages/editor-ui/src/components/CodeNodeEditor/linter.ts
+++ b/packages/editor-ui/src/components/CodeNodeEditor/linter.ts
@@ -66,6 +66,8 @@ export const linterExtension = defineComponent({
 				}
 			}
 
+			if (ast === null) return [];
+
 			const lintings: Diagnostic[] = [];
 
 			/**