diff --git a/stepmania/src/archutils/Darwin/KeyboardDevice.cpp b/stepmania/src/archutils/Darwin/KeyboardDevice.cpp
index dfccd35d2c..2d2be48400 100644
--- a/stepmania/src/archutils/Darwin/KeyboardDevice.cpp
+++ b/stepmania/src/archutils/Darwin/KeyboardDevice.cpp
@@ -163,7 +163,10 @@ void KeyboardDevice::AddElement( int usagePage, int usage, IOHIDElementCookie co
 void KeyboardDevice::Open()
 {
 	for( hash_map<IOHIDElementCookie,DeviceButton>::const_iterator i = m_Mapping.begin(); i != m_Mapping.end(); ++i )
+	{
+		LOG->Trace( "Adding %s to queue, cookie %p", DeviceButtonToString(i->second).c_str(), i->first );
 		AddElementToQueue( i->first );
+	}
 }
 
 void KeyboardDevice::GetButtonPresses( vector<DeviceInput>& vPresses, IOHIDElementCookie cookie, int value, const RageTimer& now ) const