diff --git a/src/emu/emupal.h b/src/emu/emupal.h
index f87b7d65e5d..cc107d5a2a5 100644
--- a/src/emu/emupal.h
+++ b/src/emu/emupal.h
@@ -146,7 +146,7 @@
 #define PALETTE_FORMAT_RRRGGGBB raw_to_rgb_converter(1, &raw_to_rgb_converter::standard_rgb_decoder<3,3,2, 5,2,0>)
 
 // standard 2-2-2-2 formats
-#define PALETTE_FORMAT_BBGGRRII raw_to_rgb_converter(1, &raw_to_rgb_converter::standard_irgb_decoder<2,2,2,2, 0,2,4,6>)
+#define PALETTE_FORMAT_BBGGRRII raw_to_rgb_converter(1, &raw_to_rgb_converter::BBGGRRII_decoder)
 
 // standard 4-4-4 formats
 #define PALETTE_FORMAT_xxxxBBBBGGGGRRRR raw_to_rgb_converter(2, &raw_to_rgb_converter::standard_rgb_decoder<4,4,4, 0,4,8>)
@@ -301,6 +301,15 @@ public:
 		UINT8 b = (i * palexpand<_BlueBits>(raw >> _BlueShift)) >> 8;
 		return rgb_t(r, g, b);
 	}
+
+	static rgb_t BBGGRRII_decoder(UINT32 raw)
+	{
+		UINT8 i = (raw >> 0) & 3;
+		UINT8 r = pal4bit(((raw >> 0) & 0x0c) | i);
+		UINT8 g = pal4bit(((raw >> 2) & 0x0c) | i);
+		UINT8 b = pal4bit(((raw >> 4) & 0x0c) | i);
+		return rgb_t(r, g, b);
+	}
 	
 	// other standard decoders
 	static rgb_t RRRRGGGGBBBBRGBx_decoder(UINT32 raw);	// bits 3/2/1 are LSb