diff --git a/module/repo/tao.php b/module/repo/tao.php
index 9db2217ee5..b229603f83 100644
--- a/module/repo/tao.php
+++ b/module/repo/tao.php
@@ -76,7 +76,7 @@ class repoTao extends repoModel
      */
     protected function checkName(object $repo)
     {
-        $pattern = "/^[a-zA-Z0-9_\-\.]+$/";
+        $pattern = "/^[a-zA-Z_\-\.]+$/";
         return preg_match($pattern, $repo->name);
     }