diff --git a/service-web/src/main/resources/static/components/common.js b/service-web/src/main/resources/static/components/common.js
index 62e25ed..3d577c2 100644
--- a/service-web/src/main/resources/static/components/common.js
+++ b/service-web/src/main/resources/static/components/common.js
@@ -1916,6 +1916,7 @@ function mappingField(field, mapping) {
     })
     return {
         type: 'mapping',
+        value: `\${${field}}`,
         map: mapData,
     }
 }