diff --git a/src/luasocket.h b/src/luasocket.h
index f75d21f..f5eef1f 100644
--- a/src/luasocket.h
+++ b/src/luasocket.h
@@ -7,7 +7,9 @@
 * 9/11/1999
 \*=========================================================================*/
 #include "lua.h"
-
+#ifndef luaL_checkint
+#define luaL_checkint (int)luaL_checkinteger
+#endif
 /*-------------------------------------------------------------------------*\
 * Current socket library version
 \*-------------------------------------------------------------------------*/
diff --git a/src/mime.h b/src/mime.h
index 99968a5..98cbf16 100644
--- a/src/mime.h
+++ b/src/mime.h
@@ -24,6 +24,10 @@
 #define MIME_API extern
 #endif
 
+#ifndef luaL_checkint
+#define luaL_checkint (int)luaL_checkinteger
+#endif
+
 MIME_API int luaopen_mime_core(lua_State *L);
 
 #endif /* MIME_H */