diff --git a/include/osmocom/msc/gsm_04_11.h b/include/osmocom/msc/gsm_04_11.h
index e9043d579..0b9639fcc 100644
--- a/include/osmocom/msc/gsm_04_11.h
+++ b/include/osmocom/msc/gsm_04_11.h
@@ -37,7 +37,6 @@ struct gsm_sms *sms_from_text(struct vlr_subscr *receiver,
 			      const char *sender_msisdn,
 			      int dcs, const char *text);
 
-void _gsm411_sms_trans_free(struct gsm_trans *trans);
 int gsm411_send_sms_subscr(struct vlr_subscr *vsub,
 			   struct gsm_sms *sms);
 int gsm411_send_sms(struct gsm_subscriber_connection *conn,
diff --git a/src/libmsc/transaction.c b/src/libmsc/transaction.c
index 4c351d3b8..be1442061 100644
--- a/src/libmsc/transaction.c
+++ b/src/libmsc/transaction.c
@@ -31,6 +31,7 @@
 void *tall_trans_ctx;
 
 void _gsm48_cc_trans_free(struct gsm_trans *trans);
+void _gsm411_sms_trans_free(struct gsm_trans *trans);
 void _gsm911_nc_ss_trans_free(struct gsm_trans *trans);
 
 /*! Find a transaction in connection for given protocol + transaction ID