diff --git a/src/common/core/antibot/plugin.json b/src/common/core/antibot/plugin.json
index 823042c12..206d0a9a1 100644
--- a/src/common/core/antibot/plugin.json
+++ b/src/common/core/antibot/plugin.json
@@ -82,7 +82,7 @@
       "help": "Sitekey for hCaptcha challenge.",
       "id": "antibot-hcaptcha-sitekey",
       "label": "hCaptcha sitekey",
-      "regex": "^[a-zA-Z0-9]*$",
+      "regex": "^[a-zA-Z0-9-]*$",
       "type": "text"
     },
     "ANTIBOT_HCAPTCHA_SECRET": {