diff --git a/lib/CPUs/MIPS/bsp/examples/libsys.h b/lib/CPUs/MIPS/bsp/examples/libsys.h
index 29fda71..8079df6 100644
--- a/lib/CPUs/MIPS/bsp/examples/libsys.h
+++ b/lib/CPUs/MIPS/bsp/examples/libsys.h
@@ -74,6 +74,7 @@
 #define	sys_ac97_wavin	sys_ac97_pcm
 #define	sys_ac97_wavout	sys_ac97_pcm
 #define	sys_flash_io	0xA4000000
+#define	sys_flash_mem	0x00000000
 #define	sys_ssram_io	0xA8000000
 
 //#define STDOUT_FUNCTION	_cg_putchar		// Video character