diff --git a/common_mips64.h b/common_mips64.h
index af638d60c..a06edfe08 100644
--- a/common_mips64.h
+++ b/common_mips64.h
@@ -227,7 +227,7 @@ REALNAME: ;\
 
 #define SEEK_ADDRESS
 
-#define BUFFER_SIZE     ( 32 << 20)
+#define BUFFER_SIZE     ( 32 << 21)
 
 #if defined(LOONGSON3A)
 #define PAGESIZE	(16UL << 10)