diff --git a/users/views.py b/users/views.py
index 6c88955..c382a2e 100644
--- a/users/views.py
+++ b/users/views.py
@@ -100,7 +100,7 @@ class NicknameAPIView(APIView):
         
 class TagUserAPIView(APIView):
     def get(self, request):
-        nickname = request.query_params.get(nickname)
+        nickname = request.query_params.get('nickname')
         users = User.objects.filter(nickname__icontains=nickname).annotate(
             priority=Case(
                 When(nickname__iexact=nickname, then=Value(0)),