diff --git a/openbsc/src/osmo-bsc/osmo_bsc_filter.c b/openbsc/src/osmo-bsc/osmo_bsc_filter.c
index f7f3053..f034494 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_filter.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_filter.c
@@ -230,7 +230,7 @@
 	struct osmo_bsc_sccp_con *bsc_con;
 
 	bsc_con = conn->sccp_con;
-	if (!bsc_con || !bsc_con->msc->ussd_welcome_txt);
+	if (!bsc_con || !bsc_con->msc->ussd_welcome_txt)
 		return;
 
 	gsm0480_send_ussdNotify(conn, 1, bsc_con->msc->ussd_welcome_txt);