diff --git a/sdk/resources/arm-resources/src/models/index.ts b/sdk/resources/arm-resources/src/models/index.ts
index 740247d04144..ad174de99f5b 100644
--- a/sdk/resources/arm-resources/src/models/index.ts
+++ b/sdk/resources/arm-resources/src/models/index.ts
@@ -1236,7 +1236,7 @@ export interface OperationDisplay {
 /**
  * Microsoft.Resources operation
  */
-export interface Operation1 {
+export interface Operation {
   /**
    * Operation name: {provider}/{resource}/{operation}
    */
@@ -1348,7 +1348,7 @@ export interface TagsPatchResource {
   /**
    * The operation type for the patch API. Possible values include: 'Replace', 'Merge', 'Delete'
    */
-  operation?: Operation;
+  operation?: TagsPatchOperation;
   /**
    * The set of tags.
    */
@@ -1708,9 +1708,9 @@ export interface DeploymentsWhatIfHeaders {
  * @interface
  * Result of the request to list Microsoft.Resources operations. It contains a list of operations
  * and a URL link to get the next set of results.
- * @extends Array<Operation1>
+ * @extends Array<Operation>
  */
-export interface OperationListResult extends Array<Operation1> {
+export interface OperationListResult extends Array<Operation> {
   /**
    * URL to get the next set of operation list results if there are any.
    */
@@ -1897,12 +1897,12 @@ export type PropertyChangeType = 'Create' | 'Delete' | 'Modify' | 'Array';
 export type ChangeType = 'Create' | 'Delete' | 'Ignore' | 'Deploy' | 'NoChange' | 'Modify';
 
 /**
- * Defines values for Operation.
+ * Defines values for TagsPatchOperation.
  * Possible values include: 'Replace', 'Merge', 'Delete'
  * @readonly
  * @enum {string}
  */
-export type Operation = 'Replace' | 'Merge' | 'Delete';
+export type TagsPatchOperation = 'Replace' | 'Merge' | 'Delete';
 
 /**
  * Contains response data for the list operation.
diff --git a/sdk/resources/arm-resources/src/models/mappers.ts b/sdk/resources/arm-resources/src/models/mappers.ts
index 7713e31525ab..6e248695fcca 100644
--- a/sdk/resources/arm-resources/src/models/mappers.ts
+++ b/sdk/resources/arm-resources/src/models/mappers.ts
@@ -2037,11 +2037,11 @@ export const OperationDisplay: msRest.CompositeMapper = {
   }
 };
 
-export const Operation1: msRest.CompositeMapper = {
+export const Operation: msRest.CompositeMapper = {
   serializedName: "Operation",
   type: {
     name: "Composite",
-    className: "Operation1",
+    className: "Operation",
     modelProperties: {
       name: {
         serializedName: "name",
@@ -2411,7 +2411,7 @@ export const OperationListResult: msRest.CompositeMapper = {
           element: {
             type: {
               name: "Composite",
-              className: "Operation1"
+              className: "Operation"
             }
           }
         }
diff --git a/sdk/resources/arm-resources/src/models/operationsMappers.ts b/sdk/resources/arm-resources/src/models/operationsMappers.ts
index 7a144dbaf3be..fb04a88e695f 100644
--- a/sdk/resources/arm-resources/src/models/operationsMappers.ts
+++ b/sdk/resources/arm-resources/src/models/operationsMappers.ts
@@ -10,7 +10,7 @@ export {
   CloudError,
   ErrorAdditionalInfo,
   ErrorResponse,
-  Operation1,
+  Operation,
   OperationDisplay,
   OperationListResult
 } from "../models/mappers";