diff --git a/api/controllers/console/workspace/members.py b/api/controllers/console/workspace/members.py
index 1afb41ea87660c..a2b41c1d38f87d 100644
--- a/api/controllers/console/workspace/members.py
+++ b/api/controllers/console/workspace/members.py
@@ -122,7 +122,7 @@ def put(self, member_id):
             return {"code": "invalid-role", "message": "Invalid role"}, 400
 
         member = db.session.get(Account, str(member_id))
-        if member:
+        if not member:
             abort(404)
 
         try: