diff --git a/apps/assets/models/asset.py b/apps/assets/models/asset.py
index 02d2724d6..f0d41cf98 100644
--- a/apps/assets/models/asset.py
+++ b/apps/assets/models/asset.py
@@ -152,11 +152,7 @@ class Asset(models.Model):
                 'username': admin_user.username,
                 'password': admin_user.password,
                 'private_key': admin_user.private_key_file,
-                'become': {
-                    'method': admin_user.become_method,
-                    'user': admin_user.become_user,
-                    'pass': admin_user.become_pass,
-                }
+                'become': admin_user.become_info,
             })
         return data
 
diff --git a/apps/assets/models/user.py b/apps/assets/models/user.py
index 3e5e41b8d..be1f562dc 100644
--- a/apps/assets/models/user.py
+++ b/apps/assets/models/user.py
@@ -158,6 +158,19 @@ class AdminUser(AssetUser):
     def become_pass(self, password):
         self._become_pass = signer.sign(password)
 
+    @property
+    def become_info(self):
+        if self.become:
+            info = {
+                "method": self.become_method,
+                "user": self.become_user,
+                "pass": self.become_pass,
+            }
+        else:
+            info = None
+        return info
+
+
     def get_related_assets(self):
         assets = []
         for cluster in self.cluster_set.all():