diff --git a/app/modules/ws2p/lib/constants.ts b/app/modules/ws2p/lib/constants.ts
index 922977353d90ea1c29be7710d9d705665a15d82b..6d681b7b648156909ea68a37db19c7a7b25d99fb 100644
--- a/app/modules/ws2p/lib/constants.ts
+++ b/app/modules/ws2p/lib/constants.ts
@@ -37,7 +37,7 @@ export const WS2PConstants = {
   + '(' + CommonConstants.FORMATS.SOFTWARE + '):'
   + '(' + CommonConstants.FORMATS.SOFT_VERSION + '):'
   + '(' + CommonConstants.FORMATS.POW_PREFIX + ')'
-  + '(?:' + CommonConstants.FORMATS.TIMESTAMP + ')?'
+  + '(?::' + CommonConstants.FORMATS.TIMESTAMP + ')?'
   + '$'),
 
   HOST_ONION_REGEX: CommonConstants.HOST_ONION_REGEX,