diff --git a/samples/client/petstore/typescript-angular-v2/npm/pom.xml b/samples/client/petstore/typescript-angular-v2/npm/pom.xml
index 2fa94375062..ef93997a825 100644
--- a/samples/client/petstore/typescript-angular-v2/npm/pom.xml
+++ b/samples/client/petstore/typescript-angular-v2/npm/pom.xml
@@ -39,6 +39,20 @@
                             </arguments>
                         </configuration>
                     </execution>
+                    <execution>
+                        <id>npm-run-build</id>
+                        <phase>integration-test</phase>
+                        <goals>
+                            <goal>exec</goal>
+                        </goals>
+                        <configuration>
+                            <executable>npm</executable>
+                            <arguments>
+                                <argument>run</argument>
+                                <argument>build</argument>
+                            </arguments>
+                        </configuration>
+                    </execution>
                 </executions>
             </plugin>
         </plugins>
diff --git a/samples/client/petstore/typescript-angular-v4/npm/package.json b/samples/client/petstore/typescript-angular-v4/npm/package.json
index a15c011fe29..2b62278a434 100644
--- a/samples/client/petstore/typescript-angular-v4/npm/package.json
+++ b/samples/client/petstore/typescript-angular-v4/npm/package.json
@@ -35,6 +35,6 @@
     "typescript": "^2.1.5"
   },
   "publishConfig": {
-    "registry":"https://skimdb.npmjs.com/registry"
+    "registry": "https://skimdb.npmjs.com/registry"
   }
 }
diff --git a/samples/client/petstore/typescript-angular-v4/npm/pom.xml b/samples/client/petstore/typescript-angular-v4/npm/pom.xml
index f819205f53d..0fd558145ef 100644
--- a/samples/client/petstore/typescript-angular-v4/npm/pom.xml
+++ b/samples/client/petstore/typescript-angular-v4/npm/pom.xml
@@ -39,6 +39,20 @@
                             </arguments>
                         </configuration>
                     </execution>
+                    <execution>
+                        <id>npm-run-build</id>
+                        <phase>integration-test</phase>
+                        <goals>
+                            <goal>exec</goal>
+                        </goals>
+                        <configuration>
+                            <executable>npm</executable>
+                            <arguments>
+                                <argument>run</argument>
+                                <argument>build</argument>
+                            </arguments>
+                        </configuration>
+                    </execution>
                 </executions>
             </plugin>
         </plugins>