diff --git a/tsp-typescript-client/fixtures/tsp-client/fetch-configuration-sources-0.json b/tsp-typescript-client/fixtures/tsp-client/fetch-configuration-sources-0.json
index 3fc829b..3361d12 100644
--- a/tsp-typescript-client/fixtures/tsp-client/fetch-configuration-sources-0.json
+++ b/tsp-typescript-client/fixtures/tsp-client/fetch-configuration-sources-0.json
@@ -8,7 +8,7 @@
 				"keyName": "path",
 				"description": "path description",
 				"dataType": "STRING",
-				"isRequired": "True"
+				"required": "True"
  			},
 			{
 				"keyName": "test1"
diff --git a/tsp-typescript-client/src/models/configuration-source.ts b/tsp-typescript-client/src/models/configuration-source.ts
index 00d0e3b..4399d65 100644
--- a/tsp-typescript-client/src/models/configuration-source.ts
+++ b/tsp-typescript-client/src/models/configuration-source.ts
@@ -55,5 +55,5 @@ export interface ConfigurationParameterDescriptor {
     /**
      * If parameter needs to in the query parameters or not. Default is false. 
      */
-    isRequired?: boolean;
+    required?: boolean;
 }
diff --git a/tsp-typescript-client/src/protocol/tsp-client.test.ts b/tsp-typescript-client/src/protocol/tsp-client.test.ts
index 098cc67..f65e16c 100644
--- a/tsp-typescript-client/src/protocol/tsp-client.test.ts
+++ b/tsp-typescript-client/src/protocol/tsp-client.test.ts
@@ -539,12 +539,12 @@ describe('HttpTspClient Deserialization', () => {
     expect(paramDesc[0].keyName).toEqual('path');
     expect(paramDesc[0].description).toEqual('path description');
     expect(paramDesc[0].dataType).toEqual('STRING');
-    expect(paramDesc[0].isRequired).toBeTruthy();
+    expect(paramDesc[0].required).toBeTruthy();
 
     expect(paramDesc[1].keyName).toEqual('test1');
     expect(paramDesc[1].description).toBeUndefined();
     expect(paramDesc[1].dataType).toBeUndefined();
-    expect(paramDesc[1].isRequired).toBeUndefined();
+    expect(paramDesc[1].required).toBeUndefined();
     expect(sourceTypes[0].schema).toBeUndefined();
 
     expect(sourceTypes[1].parameterDescriptors).toBeUndefined();