diff --git a/url_regex.hh b/url_regex.hh
index eec1629..3c7e7c4 100644
--- a/url_regex.hh
+++ b/url_regex.hh
@@ -3,7 +3,7 @@
 
 #define USERCHARS       "-[:alnum:]"
 #define USERCHARS_CLASS "[" USERCHARS "]"
-#define PASSCHARS_CLASS "[-[:alnum:]\\Q,?;.:/!%$^*&~\"#'\\E]"
+#define PASSCHARS_CLASS "[-[:alnum:]\\Q,?;.!%$^*&~\"#'\\E]"
 #define HOSTCHARS_CLASS "[-[:alnum:]]"
 #define HOST            "(?:" HOSTCHARS_CLASS "+(\\." HOSTCHARS_CLASS "+)*)?"
 #define PORT            "(?:\\:[[:digit:]]{1,5})?"