diff --git a/sherlock/resources/data.json b/sherlock/resources/data.json
index bf0be0d2..8f4345f9 100644
--- a/sherlock/resources/data.json
+++ b/sherlock/resources/data.json
@@ -286,6 +286,7 @@
"errorMsg": "
No results found
",
"errorType": "message",
"rank": 64100,
+ "regexCheck": "^[a-zA-z][a-zA-Z0-9_]{2,79}$",
"url": "https://www.capfriendly.com/users/{}",
"urlMain": "https://www.capfriendly.com/",
"username_claimed": "thisactuallyexists",