diff --git a/specification/apimanagement/control-plane/Microsoft.ApiManagement/preview/2017-03-01/apimidentityprovider.json b/specification/apimanagement/control-plane/Microsoft.ApiManagement/preview/2017-03-01/apimidentityprovider.json
index dc76a968aaba..0463bd01c916 100644
--- a/specification/apimanagement/control-plane/Microsoft.ApiManagement/preview/2017-03-01/apimidentityprovider.json
+++ b/specification/apimanagement/control-plane/Microsoft.ApiManagement/preview/2017-03-01/apimidentityprovider.json
@@ -404,6 +404,12 @@
           "type": "string",
           "description": "Password Reset Policy Name. Only applies to AAD B2C Identity Provider.",
           "minLength": 1
+        },
+        "clientLibrary": {
+          "type": "string",
+          "description": "The client library to be used in the developer portal. Only applies to AAD and AAD B2C Identity Provider.",
+          "minLength": 0,
+          "maxLength": 16
         }
       },
       "description": "Identity Provider Base Parameter Properties."