diff --git a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2019-01-01/apimanagement.json b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2019-01-01/apimanagement.json
index 9e647434220f..375570447cd4 100644
--- a/specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2019-01-01/apimanagement.json
+++ b/specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2019-01-01/apimanagement.json
@@ -307,7 +307,6 @@
       "description": "Group identifier. Must be unique in the current API Management service instance.",
       "minLength": 1,
       "maxLength": 256,
-      "pattern": "^[^*#&+:<>?]+$",
       "x-ms-parameter-location": "method"
     },
     "IdentityProviderNameParameter": {