diff --git a/stepmania/src/arch/InputHandler/InputHandler_Win32_MIDI.cpp b/stepmania/src/arch/InputHandler/InputHandler_Win32_MIDI.cpp
index c0be0f2617..ade396b376 100644
--- a/stepmania/src/arch/InputHandler/InputHandler_Win32_MIDI.cpp
+++ b/stepmania/src/arch/InputHandler/InputHandler_Win32_MIDI.cpp
@@ -24,7 +24,7 @@ InputHandler_Win32_MIDI::InputHandler_Win32_MIDI()
 
 	g_device = NULL;
 
-	if( device_id >= midiInGetNumDevs() )
+	if( device_id >= (int) midiInGetNumDevs() )
 	{
 		m_bFoundDevice = false;
 		return;