diff --git a/libs/sofia-sip/.update b/libs/sofia-sip/.update
index b1e582ebce..a4dca1e415 100644
--- a/libs/sofia-sip/.update
+++ b/libs/sofia-sip/.update
@@ -1 +1 @@
-Sun May 25 09:50:22 EDT 2008
+Sun May 25 09:51:04 EDT 2008
diff --git a/libs/sofia-sip/libsofia-sip-ua/nua/nua_event_server.c b/libs/sofia-sip/libsofia-sip-ua/nua/nua_event_server.c
index 363bfbd76a..fd6c6b7f46 100644
--- a/libs/sofia-sip/libsofia-sip-ua/nua/nua_event_server.c
+++ b/libs/sofia-sip/libsofia-sip-ua/nua/nua_event_server.c
@@ -145,7 +145,7 @@ nea_event_t *nh_notifier_event(nua_handle_t *nh,
 
   if (ev == NULL) {
     char *o_type = su_strdup(home, event->o_type);
-    char *o_subtype = strchr(o_type, '.');
+    char *o_subtype = o_type ? strchr(o_type, '.') : NULL;
 
     if (o_subtype)
       *o_subtype++ = '\0';