diff --git a/src/mame/drivers/et3400.cpp b/src/mame/drivers/et3400.cpp
index f83d4c4923d..e17a2df0c1a 100644
--- a/src/mame/drivers/et3400.cpp
+++ b/src/mame/drivers/et3400.cpp
@@ -28,7 +28,6 @@
 #include "machine/6821pia.h"
 #include "bus/rs232/rs232.h"
 #include "imagedev/cassette.h"
-#include "imagedev/cassette.h"
 #include "sound/wave.h"
 #include "et3400.lh"