diff --git a/src/gen_server2.erl b/src/gen_server2.erl
index 43e0a8f..cfedcbd 100644
--- a/src/gen_server2.erl
+++ b/src/gen_server2.erl
@@ -941,7 +941,7 @@ system_code_change(GS2State = #gs2_state { mod   = Mod,
         {ok, NewState} ->
             NewGS2State = find_prioritisers(
                             GS2State #gs2_state { state = NewState }),
-            {ok, [NewGS2State]};
+            {ok, NewGS2State};
         Else ->
             Else
     end.