diff --git a/src/mame/drivers/vgmplay.cpp b/src/mame/drivers/vgmplay.cpp
index 753042585ba..7ab2ecf66ca 100644
--- a/src/mame/drivers/vgmplay.cpp
+++ b/src/mame/drivers/vgmplay.cpp
@@ -70,7 +70,7 @@
 #include <vector>
 
 #define AS_IO16LE           1
-#define AS_IO16BE           2
+#define AS_IO16BE           4
 
 class vgmplay_disassembler : public util::disasm_interface
 {