diff --git a/loopback/server/model-config.json b/loopback/server/model-config.json
index 51874988d..56b5360e8 100644
--- a/loopback/server/model-config.json
+++ b/loopback/server/model-config.json
@@ -31,6 +31,13 @@
             "mysql": {
                 "table": "salix.RoleMapping"
             }
+        },
+        "relations": {
+            "role": {
+                "type": "belongsTo",
+                "model": "VnRole",
+                "foreignKey": "roleId"
+            }
         }
     },
     "Schema": {