diff --git a/airpnp/device_builder.py b/airpnp/device_builder.py
index f6ef561..9c316a8 100644
--- a/airpnp/device_builder.py
+++ b/airpnp/device_builder.py
@@ -264,15 +264,18 @@ def _get_location(self, container):
 
     def _device_finished(self, container):
         event = DeviceEvent(self, container)
-        fire_event(event, self._finished_listeners)
+        log.callWithLogger(self, fire_event, event, self._finished_listeners)
 
     def _device_rejected(self, container):
         event = DeviceEvent(self, container)
-        fire_event(event, self._rejected_listeners)
+        log.callWithLogger(self, fire_event, event, self._rejected_listeners)
 
     def _device_error(self, error, container):
         event = DeviceEvent(self, container, error)
-        fire_event(event, self._error_listeners)
+        log.callWithLogger(self, fire_event, event, self._error_listeners)
+
+    def logPrefix(self):
+        return "device_build"
 
 
 def fire_event(event, listener_list):
diff --git a/airpnp/util.py b/airpnp/util.py
index d1258d9..016d247 100644
--- a/airpnp/util.py
+++ b/airpnp/util.py
@@ -51,6 +51,7 @@ def fetch_url(url):
     """
     req = urllib2.Request(url)
 
+    log.msg('Fetching URL %s' % (url, ))
     try:
         handle = urllib2.urlopen(req)
     except urllib2.URLError, err: