diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2017-12-01/compute.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2017-12-01/compute.json
index 608e3c35725c..07bac4dfc5e1 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2017-12-01/compute.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2017-12-01/compute.json
@@ -5656,9 +5656,6 @@
           "description":  "Specifies whether an image is zone resilient or not. Default is false. Zone resilient images can be created only in regions that provide Zone Redundant Storage (ZRS)."
         }
       },
-      "required": [
-        "osDisk"
-      ],
       "description": "Describes a storage profile."
     },
     "ImageProperties": {