diff --git a/src/lzmainfo/lzmainfo.c b/src/lzmainfo/lzmainfo.c
index 8bd43af6..5f1d6798 100644
--- a/src/lzmainfo/lzmainfo.c
+++ b/src/lzmainfo/lzmainfo.c
@@ -177,7 +177,7 @@ main(int argc, char **argv)
 	parse_args(argc, argv);
 
 #ifdef TUKLIB_DOSLIKE
-	setmode(STDIN_FILENO, O_BINARY);
+	setmode(fileno(stdin), O_BINARY);
 #endif
 
 	int ret = EXIT_SUCCESS;