diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index e2713ab..215dcc0 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -12010,9 +12010,11 @@
 
 				/* delete the old sni_ctx, the old ckch_insts and the ckch_store */
 				list_for_each_entry_safe(ckchi, ckchis, &old_ckchs->ckch_inst, by_ckchs) {
-					HA_RWLOCK_WRLOCK(SNI_LOCK, &ckchi->bind_conf->sni_lock);
+					struct bind_conf *bind_conf = ckchi->bind_conf;
+
+					HA_RWLOCK_WRLOCK(SNI_LOCK, &bind_conf->sni_lock);
 					ckch_inst_free(ckchi);
-					HA_RWLOCK_WRUNLOCK(SNI_LOCK, &ckchi->bind_conf->sni_lock);
+					HA_RWLOCK_WRUNLOCK(SNI_LOCK, &bind_conf->sni_lock);
 				}
 
 				/* Replace the old ckchs by the new one */