diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index 7ec6969a92..1dd6646a32 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -469,7 +469,8 @@ void sofia_handle_sip_i_notify(switch_core_session_t *session, int status,
 	if (switch_event_create(&s_event, SWITCH_EVENT_NOTIFY_IN) == SWITCH_STATUS_SUCCESS) {
 		switch_event_add_header_string(s_event, SWITCH_STACK_BOTTOM, "event", sip->sip_event->o_type);
 		switch_event_add_header_string(s_event, SWITCH_STACK_BOTTOM, "pl_data", sip->sip_payload ? sip->sip_payload->pl_data : "");
-		switch_event_add_header_string(s_event, SWITCH_STACK_BOTTOM, "sip_content_type", sip->sip_content_type->c_type);
+		if ( sip->sip_content_type != NULL )
+			switch_event_add_header_string(s_event, SWITCH_STACK_BOTTOM, "sip_content_type", sip->sip_content_type->c_type);
 		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "port", "%d", sofia_private->gateway->profile->sip_port);
 		switch_event_add_header_string(s_event, SWITCH_STACK_BOTTOM, "module_name", "mod_sofia");
 		switch_event_add_header_string(s_event, SWITCH_STACK_BOTTOM, "profile_name", sofia_private->gateway->profile->name);