diff --git a/src/node_log.cpp b/src/node_log.cpp
index b7076457c..f39536a5a 100644
--- a/src/node_log.cpp
+++ b/src/node_log.cpp
@@ -31,6 +31,9 @@ NodeLogBackend::NodeLogBackend(v8::Handle<v8::Object> target)
       })) {
     NanScope();
     module = v8::Persistent<v8::Object>::New(target);
+
+    // Don't keep the event loop alive.
+    queue->unref();
 }
 
 NodeLogBackend::~NodeLogBackend() {
diff --git a/vendor/mbgl b/vendor/mbgl
index 590133379..1de315e91 160000
--- a/vendor/mbgl
+++ b/vendor/mbgl
@@ -1 +1 @@
-Subproject commit 5901333797f05ac861b6242f0f9d7edf0875b5cd
+Subproject commit 1de315e91ff25d4bf162c4d3bb4c453d89391c1a