diff --git a/src/xua_asp_fsm.erl b/src/xua_asp_fsm.erl
index 7dbd58a..2e586d1 100644
--- a/src/xua_asp_fsm.erl
+++ b/src/xua_asp_fsm.erl
@@ -138,7 +138,7 @@
 	 LoopDat = #asp_state{role=sg}) ->
 	% transition into ASP_INACTIVE
 	send_prim_to_user(LoopDat, osmo_util:make_prim('M','ASP_UP',indication)),
-	send_msg_start_tack(LoopDat, asp_inactive, ?M3UA_MSGC_ASPSM, ?M3UA_MSGT_ASPSM_ASPUP_ACK, []);
+	send_msg(LoopDat, asp_inactive, ?M3UA_MSGC_ASPSM, ?M3UA_MSGT_ASPSM_ASPUP_ACK, []);
 
 asp_down(WhateverElse, LoopDat = #asp_state{module = Module, ext_state = ExtState}) ->
 	{next_state, State, LDnew} = Module:asp_down(WhateverElse, ExtState, LoopDat),