diff --git a/stepmania/src/arch/arch_platform.h b/stepmania/src/arch/arch_platform.h
index b94b365b4e..4ab2755114 100644
--- a/stepmania/src/arch/arch_platform.h
+++ b/stepmania/src/arch/arch_platform.h
@@ -15,6 +15,7 @@
 #endif
 #if defined(_WINDOWS)
 #define HAVE_DIRECTX
+#define HAVE_FFMPEG
 #define HAVE_WIN32 // XXX: Better name for this API?
 #define HAVE_CRYPTOPP
 #endif