diff --git a/src/mess/drivers/itt3030.c b/src/mess/drivers/itt3030.c
index 46c394efb7a..cb3e8a12057 100644
--- a/src/mess/drivers/itt3030.c
+++ b/src/mess/drivers/itt3030.c
@@ -585,7 +585,7 @@ FLOPPY_FORMATS_END
 
 
 static SLOT_INTERFACE_START( itt3030_floppies )
-	SLOT_INTERFACE( "525dd", FLOPPY_525_DD )
+	SLOT_INTERFACE( "525dd", FLOPPY_525_QD )
 SLOT_INTERFACE_END