diff --git a/zsnes/src/chips/dsp1emu.c b/zsnes/src/chips/dsp1emu.c
index 81fbc8e9..bc684746 100644
--- a/zsnes/src/chips/dsp1emu.c
+++ b/zsnes/src/chips/dsp1emu.c
@@ -85,7 +85,7 @@ void Stop_Log (void)
 #endif
 
 
-const short DSP1ROM[1024] = {
+const unsigned short DSP1ROM[1024] = {
 	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	
 	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	
 	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,	0x0000,