diff --git a/openbsc/src/gprs/gb_proxy_main.c b/openbsc/src/gprs/gb_proxy_main.c
index 5791dab..b853fbf 100644
--- a/openbsc/src/gprs/gb_proxy_main.c
+++ b/openbsc/src/gprs/gb_proxy_main.c
@@ -236,7 +236,7 @@
 	}
 	gbcfg.nsi = bssgp_nsi;
 	gprs_ns_vty_init(bssgp_nsi);
-	osmo_signal_register_handler(SS_NS, &gbprox_signal, NULL);
+	osmo_signal_register_handler(SS_L_NS, &gbprox_signal, NULL);
 
 	rc = gbproxy_parse_config(config_file, &gbcfg);
 	if (rc < 0) {