1 files changed, 1 insertions, 1 deletions

diff --git a/lutf8lib.c b/lutf8lib.c
index 73f0e49b..0cd7f9c3 100644
--- a/lutf8lib.c
+++ b/lutf8lib.c
@@ -149,7 +149,7 @@ static int codepoint (lua_State *L) {
 static void pushutfchar (lua_State *L, int arg) {
   lua_Unsigned code = (lua_Unsigned)luaL_checkinteger(L, arg);
   luaL_argcheck(L, code <= MAXUTF, arg, "value out of range");
-  lua_pushfstring(L, "%U", (long)code);
+  lua_pushfstring(L, "%U", cast(unsigned long, code));
 }