diff --git a/src/shapes/Transformer.ts b/src/shapes/Transformer.ts
index f604baf2..0f8f3d6c 100644
--- a/src/shapes/Transformer.ts
+++ b/src/shapes/Transformer.ts
@@ -354,7 +354,7 @@ export class Transformer extends Group {
   }
 
   getNodes() {
-    return this._nodes;
+    return this._nodes || [];
   }
   /**
    * return the name of current active anchor