diff --git a/src/sound/mididevices/midi_cvars.cpp b/src/sound/mididevices/midi_cvars.cpp
index 2bee0d1b6..a26fa74af 100644
--- a/src/sound/mididevices/midi_cvars.cpp
+++ b/src/sound/mididevices/midi_cvars.cpp
@@ -49,7 +49,6 @@
 
 #ifdef _WIN32
 // do this without including windows.h for this one single prototype
-#ifdef _WIN32
 extern "C" unsigned __stdcall GetSystemDirectoryA(char* lpBuffer, unsigned uSize);
 #endif // _WIN32