diff --git a/hypha/apply/activity/admin.py b/hypha/apply/activity/admin.py
index ba4883b4e30c9b8236045d184eb14d9022ff4e70..e2c10512196d14598f4abd1d147da1bc293b2c2b 100644
--- a/hypha/apply/activity/admin.py
+++ b/hypha/apply/activity/admin.py
@@ -8,7 +8,7 @@ class MessageInline(admin.TabularInline):
     readonly_fields = ('type', 'recipient', 'content', 'status', 'external_id')
     can_delete = False
 
-    def has_add_permission(self, request):
+    def has_add_permission(self, request, obj):
         return False