diff --git a/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/preview/2018-02-01-preview/containerregistry_build.json b/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/preview/2018-02-01-preview/containerregistry_build.json
index dd7ec513136f..7aecc3c8ebc9 100644
--- a/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/preview/2018-02-01-preview/containerregistry_build.json
+++ b/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/preview/2018-02-01-preview/containerregistry_build.json
@@ -1753,10 +1753,10 @@
           "additionalProperties": {
             "type": "string"
           },
-          "x-ms-mutability": [	
-            "read",	
-            "create",	
-            "update"	
+          "x-ms-mutability": [
+            "read",
+            "create",
+            "update"
           ]
         }
       },