diff --git a/src/gb/gprs_ns2_sns.c b/src/gb/gprs_ns2_sns.c
index 3eff0f3..281f908 100644
--- a/src/gb/gprs_ns2_sns.c
+++ b/src/gb/gprs_ns2_sns.c
@@ -2732,6 +2732,7 @@
 	ns2_clear_procedures(gss);
 	ns2_clear_elems(&gss->local);
 	ns2_clear_elems(&gss->remote);
+	gss->block_no_nsvc_events = true;
 	llist_for_each_entry_safe(nsvc, nsvc2, &gss->nse->nsvc, list) {
 		/* Ignore the NSVC over which the SIZE PDU got received */
 		if (size_nsvc && size_nsvc == nsvc)
@@ -2739,6 +2740,7 @@
 
 		gprs_ns2_free_nsvc(nsvc);
 	}
+	gss->block_no_nsvc_events = false;
 }
 
 static void ns2_sns_st_sgsn_unconfigured_onenter(struct osmo_fsm_inst *fi, uint32_t old_state)