1 files changed, 2 insertions, 2 deletions
diff --git a/src/fcntl/fcntl.c b/src/fcntl/fcntl.c
index 4a713fd4..2c4f5351 100644
--- a/src/fcntl/fcntl.c
+++ b/src/fcntl/fcntl.c
@@ -7,10 +7,10 @@
 
 int fcntl(int fd, int cmd, ...)
 {
-	long arg;
+	unsigned long arg;
 	va_list ap;
 	va_start(ap, cmd);
-	arg = va_arg(ap, long);
+	arg = va_arg(ap, unsigned long);
 	va_end(ap);
 	if (cmd == F_SETFL) arg |= O_LARGEFILE;
 	if (cmd == F_SETLKW) return syscall_cp(SYS_fcntl, fd, cmd, (void *)arg);