diff --git a/src/mame/drivers/pgm2.cpp b/src/mame/drivers/pgm2.cpp
index 6937cdcc958..f7e9dba632e 100644
--- a/src/mame/drivers/pgm2.cpp
+++ b/src/mame/drivers/pgm2.cpp
@@ -148,10 +148,12 @@ static const uint8_t orleg2_china_card[32] = {
 	0xA2, 0x13, 0x10, 0x91, 0x05, 0x0C, 0x81, 0x15, 0x10, 0x00, 0x00, 0x03, 0x00, 0x49, 0x47, 0x53,
 	0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0x76, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
+#ifdef UNUSED_DEFINITION
 static const uint8_t kov2nl_china_card[32] = {
 	0xA2, 0x13, 0x10, 0x91, 0x05, 0x0C, 0x81, 0x15, 0x06, 0x00, 0x00, 0x04, 0x00, 0x49, 0x47, 0x53,
 	0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0x76, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
+#endif
 
 // "MPU" MCU HLE starts here
 // TODO: make data cards using image_interface