1 files changed, 1 insertions, 1 deletions

diff --git a/lzio.h b/lzio.h
index 55cc74ad..49047c98 100644
--- a/lzio.h
+++ b/lzio.h
@@ -32,7 +32,7 @@ typedef struct Mbuffer {
 #define luaZ_sizebuffer(buff)   ((buff)->buffsize)
 #define luaZ_bufflen(buff)      ((buff)->n)
 
-#define luaZ_buffremove(buff,i) ((buff)->n -= (i))
+#define luaZ_buffremove(buff,i) ((buff)->n -= cast_sizet(i))
 #define luaZ_resetbuffer(buff) ((buff)->n = 0)