diff --git a/common_mips.h b/common_mips.h
index dd2f8d558..7dc3ba246 100644
--- a/common_mips.h
+++ b/common_mips.h
@@ -94,7 +94,7 @@ REALNAME:
 #endif
 #define HUGE_PAGESIZE   ( 4 << 20)
 
-#define BUFFER_SIZE     (16 << 20)
+#define BUFFER_SIZE     (16 << 21)
 
 
 #define BASE_ADDRESS (START_ADDRESS - BUFFER_SIZE * MAX_CPU_NUMBER)