diff --git a/spa/api/v1/ActivityResource.py b/spa/api/v1/ActivityResource.py
index c9566e2..debf3ed 100644
--- a/spa/api/v1/ActivityResource.py
+++ b/spa/api/v1/ActivityResource.py
@@ -19,7 +19,7 @@ class ActivityResource(BackboneCompatibleResource):
     def dehydrate(self, bundle):
         try:
             if bundle.obj.user is not None:
-                user_name = bundle.obj.user.get_full_name()
+                user_name = bundle.obj.user.get_profile().nice_name()
                 user_image = bundle.obj.user.get_profile().get_small_profile_image()
                 user_profile = bundle.obj.user.get_profile().get_profile_url()
             else: