diff --git a/packages/manipulator/src/index.ts b/packages/manipulator/src/index.ts
index 0cbb090a..5d67d046 100644
--- a/packages/manipulator/src/index.ts
+++ b/packages/manipulator/src/index.ts
@@ -228,7 +228,7 @@ export const organize = async (
         break;
 
       default:
-        throw new Error(`[@pdfme/manipulator] Unknown action type: ${(action as any).type}`);
+        throw new Error(`[@pdfme/manipulator] Unknown action type: ${(action as { type: string }).type}`);
     }
   }