diff --git a/testing/taskcluster/tasks/builds/b2g_emulator.yml b/testing/taskcluster/tasks/builds/b2g_emulator.yml
index 57c7089b0ba0..b06f34f419d9 100644
--- a/testing/taskcluster/tasks/builds/b2g_emulator.yml
+++ b/testing/taskcluster/tasks/builds/b2g_emulator.yml
@@ -27,7 +27,7 @@ task:
       REPOSITORY: '{{repository}}'
 
     image: '{{#docker_image}}builder{{/docker_image}}'
-    maxRunTime: 7200
+    maxRunTime: 14400
 
     command:
       - build-emulator.sh