diff --git a/md2point.c b/md2point.c
index b79af1d..9d28374 100644
--- a/md2point.c
+++ b/md2point.c
@@ -100,7 +100,7 @@ mkfilename(char *fname, char *str, size_t len, int i)
 void
 copyfile(char *dst, char *src)
 {
-	char c;
+	int c;
 	FILE *fsrc, *fdst;
 
 	if (strlen(src) < 1 || strlen(dst) < 1 ||