diff --git a/main.go b/main.go
index 76076c8..6167b83 100644
--- a/main.go
+++ b/main.go
@@ -26,7 +26,7 @@ func check(e error) {
 }
 
 func tcp_rows(connections_file string) {
-	regexpression	:= regexp.MustCompile(`[^a-zA-Z0-9\r\n\t\v]+`)
+	regexpression	:= regexp.MustCompile(`[^a-zA-Z0-9:\r\n\t\v]+`)
 	tcp_lines	:= strings.Split(connections_file, "\n")
 
 	for _, line	:= range tcp_lines {