diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
index f2db0c308021..91f63bd4b7f0 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json
@@ -3036,10 +3036,7 @@
           "type": "object",
           "description": "The encrypted credential used for authentication. Credentials are encrypted using the integration runtime credential manager. Type: string (or Expression with resultType string)."
         }
-      },
-      "required": [
-        "server"
-      ]
+      }
     },
     "AmazonMWSLinkedService": {
       "x-ms-discriminator-value": "AmazonMWS",