--- a/util.c
+++ b/util.c
@@ -2088,7 +2088,7 @@
 	int pad_len;
 	bool bracket=false;
 	bool port=false;
-	bool port_num=0;
+	int port_num=0;
 
 	// skip leading spaces and tabs
 	while (*buf && (*buf==' ' || *buf=='\t')) buf++;