diff --git a/src/gb/gprs_ns2_sns.c b/src/gb/gprs_ns2_sns.c
index 7619b66..0afc06e 100644
--- a/src/gb/gprs_ns2_sns.c
+++ b/src/gb/gprs_ns2_sns.c
@@ -3021,7 +3021,9 @@
 			/* keep the NSVC we need for SNS, but unconfigure it */
 			gss->sns_nsvc->sig_weight = 0;
 			gss->sns_nsvc->data_weight = 0;
+			gss->block_no_nsvc_events = true;
 			ns2_vc_force_unconfigured(gss->sns_nsvc);
+			gss->block_no_nsvc_events = false;
 			ns2_sns_compute_local_ep_from_binds(fi);
 		}