diff --git a/app/models/project_services/slack_service.rb b/app/models/project_services/slack_service.rb
index 95f3ddcef451..837002ef3c87 100644
--- a/app/models/project_services/slack_service.rb
+++ b/app/models/project_services/slack_service.rb
@@ -40,7 +40,8 @@ def execute(push_data)
       project_name: project_name
     ))
 
-    credentials = webhook.match(/(\w*).slack.com.*services\/(.*)/)
+    credentials = webhook.match(/([\w-]*).slack.com.*services\/(.*)/)
+
     if credentials.present?
       subdomain =  credentials[1]
       token = credentials[2].split("token=").last