diff --git a/packages/pont-engine/src/compatible/standard.ts b/packages/pont-engine/src/compatible/standard.ts
index 75d31f3..ae0d2ac 100644
--- a/packages/pont-engine/src/compatible/standard.ts
+++ b/packages/pont-engine/src/compatible/standard.ts
@@ -192,7 +192,7 @@ export class StandardDataType<T = any> extends Contextable<T> {
   getDefName(originName) {
     let name = this.typeName;
 
-    if (this.isDefsType) {
+    if (this.isDefsType && this.typeName !== 'ObjectMap') {
       name = originName ? `defs.${originName}.${this.typeName}` : `defs.${this.typeName}`;
     }