diff --git a/src/test/java/io/jenkins/plugins/artifact_manager_jclouds/MockBlobStore.java b/src/test/java/io/jenkins/plugins/artifact_manager_jclouds/MockBlobStore.java
index 02905a33..b40ced24 100644
--- a/src/test/java/io/jenkins/plugins/artifact_manager_jclouds/MockBlobStore.java
+++ b/src/test/java/io/jenkins/plugins/artifact_manager_jclouds/MockBlobStore.java
@@ -141,7 +141,7 @@ public synchronized BlobStoreContext getContext() throws IOException {
                 }).
                 create();
             server.start();
-            baseURL = new URL("http://" + server.getInetAddress().getHostName() + ":" + server.getLocalPort() + "/");
+            baseURL = new URL("http", server.getInetAddress().getHostName(), server.getLocalPort(), "/");
             LOGGER.log(Level.INFO, "Mock server running at {0}", baseURL);
         }
         return context;