diff --git a/core/plug-in/sipctrl/parse_uri.h b/core/plug-in/sipctrl/parse_uri.h
index 3cf4a96c..eb2c3285 100644
--- a/core/plug-in/sipctrl/parse_uri.h
+++ b/core/plug-in/sipctrl/parse_uri.h
@@ -48,8 +48,8 @@ struct sip_uri
     cstring    passwd;
     cstring    host;
 
-    cstring    port_str; // ?? short ??
-    short int  port;
+    cstring    port_str;
+    short unsigned int  port;
 
     list<sip_avp*> params;
     list<sip_avp*> hdrs;