diff --git a/pom.xml b/pom.xml
index 31a34489f15..e6d319c42d7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -439,6 +439,7 @@
                 <module>samples/client/petstore/java/jersey2</module>
                 <module>samples/client/petstore/java/okhttp-gson</module>
                 <module>samples/client/petstore/java/retrofit</module>
+                <module>samples/client/petstore/java/retrofit2</module>
                 <module>samples/client/petstore/scala</module>
                 <module>samples/server/petstore/spring-mvc</module>
                 <!--module>samples/client/petstore/objc</module-->