diff --git a/modules/openapi-generator/src/main/resources/typescript-node/api-single.mustache b/modules/openapi-generator/src/main/resources/typescript-node/api-single.mustache
index 43b9f074069..99c84a6fbb4 100644
--- a/modules/openapi-generator/src/main/resources/typescript-node/api-single.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-node/api-single.mustache
@@ -153,6 +153,10 @@ export class {{classname}} {
      {{#allParams}}
      * @param {{paramName}} {{description}}
      {{/allParams}}
+     {{#isDeprecated}}
+     *
+     * @deprecated
+     {{/isDeprecated}}
      */
     public async {{nickname}} ({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}options: {headers: {[name: string]: string}} = {headers: {}}) : Promise<{ response: http.IncomingMessage; {{#returnType}}body: {{{.}}}; {{/returnType}}{{^returnType}}body?: any; {{/returnType}} }> {
         const localVarPath = this.basePath + '{{{path}}}'{{#pathParams}}
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/typescriptnode/TypeScriptNodeClientCodegenTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/typescriptnode/TypeScriptNodeClientCodegenTest.java
index 108d12c0917..38a0bcf2cb9 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/typescriptnode/TypeScriptNodeClientCodegenTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/typescriptnode/TypeScriptNodeClientCodegenTest.java
@@ -296,6 +296,26 @@ public class TypeScriptNodeClientCodegenTest {
                 "* @deprecated");
     }
 
+    @Test
+    public void testDeprecatedOperation() throws IOException {
+
+        File output = Files.createTempDirectory("typescriptnodeclient_").toFile();
+        output.deleteOnExit();
+
+        final CodegenConfigurator configurator = new CodegenConfigurator()
+                .setGeneratorName("typescript-node")
+                .setInputSpec("src/test/resources/3_0/typescript-node/SampleProject.yaml")
+                .setOutputDir(output.getAbsolutePath().replace("\\", "/"));
+
+        final ClientOptInput clientOptInput = configurator.toClientOptInput();
+        DefaultGenerator generator = new DefaultGenerator();
+        List<File> files = generator.opts(clientOptInput).generate();
+        files.forEach(File::deleteOnExit);
+
+        TestUtils.assertFileContains(Paths.get(output + "/api/defaultApi.ts"),
+                "* @deprecated");
+    }
+
     private OperationsMap createPostProcessOperationsMapWithImportName(String importName) {
         OperationMap operations = new OperationMap();
         operations.setClassname("Pet");
diff --git a/modules/openapi-generator/src/test/resources/3_0/typescript-node/SampleProject.yaml b/modules/openapi-generator/src/test/resources/3_0/typescript-node/SampleProject.yaml
index a9cb17fada3..90de51babe5 100644
--- a/modules/openapi-generator/src/test/resources/3_0/typescript-node/SampleProject.yaml
+++ b/modules/openapi-generator/src/test/resources/3_0/typescript-node/SampleProject.yaml
@@ -147,6 +147,7 @@ paths:
     patch:
       summary: Update User Information
       operationId: patch-users-userId
+      deprecated: true
       responses:
         '200':
           description: User Updated
diff --git a/samples/client/petstore/typescript-node/3_0/api/defaultApi.ts b/samples/client/petstore/typescript-node/3_0/api/defaultApi.ts
index 9786eacce90..1c324466d47 100644
--- a/samples/client/petstore/typescript-node/3_0/api/defaultApi.ts
+++ b/samples/client/petstore/typescript-node/3_0/api/defaultApi.ts
@@ -114,6 +114,8 @@ export class DefaultApi {
      * @param strCode Code as header
      * @param strCode2 Code as header2
      * @param patchUsersUserIdRequest Patch user properties to update.
+     *
+     * @deprecated
      */
     public async patchUsersUserId (userId: number, strCode?: string, strCode2?: string, patchUsersUserIdRequest?: PatchUsersUserIdRequest, options: {headers: {[name: string]: string}} = {headers: {}}) : Promise<{ response: http.IncomingMessage; body: User;  }> {
         const localVarPath = this.basePath + '/users/{userId}'
diff --git a/samples/client/petstore/typescript-node/default/api/petApi.ts b/samples/client/petstore/typescript-node/default/api/petApi.ts
index f755d42f4da..45e173378a5 100644
--- a/samples/client/petstore/typescript-node/default/api/petApi.ts
+++ b/samples/client/petstore/typescript-node/default/api/petApi.ts
@@ -304,6 +304,8 @@ export class PetApi {
      * Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
      * @summary Finds Pets by tags
      * @param tags Tags to filter by
+     *
+     * @deprecated
      */
     public async findPetsByTags (tags: Array<string>, options: {headers: {[name: string]: string}} = {headers: {}}) : Promise<{ response: http.IncomingMessage; body: Array<Pet>;  }> {
         const localVarPath = this.basePath + '/pet/findByTags';
diff --git a/samples/client/petstore/typescript-node/npm/api/petApi.ts b/samples/client/petstore/typescript-node/npm/api/petApi.ts
index f755d42f4da..45e173378a5 100644
--- a/samples/client/petstore/typescript-node/npm/api/petApi.ts
+++ b/samples/client/petstore/typescript-node/npm/api/petApi.ts
@@ -304,6 +304,8 @@ export class PetApi {
      * Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
      * @summary Finds Pets by tags
      * @param tags Tags to filter by
+     *
+     * @deprecated
      */
     public async findPetsByTags (tags: Array<string>, options: {headers: {[name: string]: string}} = {headers: {}}) : Promise<{ response: http.IncomingMessage; body: Array<Pet>;  }> {
         const localVarPath = this.basePath + '/pet/findByTags';