diff --git a/src/mainwindow.h b/src/mainwindow.h
index e252b55..6cd2f61 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -11,7 +11,7 @@
 #include <deque>
 #include "HCAStreamChannel.h"
 #include "utils.h"
-#include "../HCADecoder/HCADecodeService.h"
+#include "../FastHCADecoder/HCADecodeService.h"
 #include "../bass/bass.h"
 #include "../bass/bass_fx.h"