diff --git a/specification/resourcehealth/resource-manager/Microsoft.ResourceHealth/stable/2020-05-01/ResourceHealth.json b/specification/resourcehealth/resource-manager/Microsoft.ResourceHealth/stable/2020-05-01/ResourceHealth.json
index 9f9d57aa5ad6..c2a6f67c6f8c 100644
--- a/specification/resourcehealth/resource-manager/Microsoft.ResourceHealth/stable/2020-05-01/ResourceHealth.json
+++ b/specification/resourcehealth/resource-manager/Microsoft.ResourceHealth/stable/2020-05-01/ResourceHealth.json
@@ -679,6 +679,10 @@
       "enum": [
         "default"
       ],
+      "x-ms-enum": {
+        "name": "IssueNameParameter",
+        "modelAsString": true
+      },
       "x-ms-parameter-location": "method"
     },
     "ResourceGroupNameParameter": {