diff --git a/lib/linux/unlink.c b/lib/linux/unlink.c
index 3889a067..4a6881fc 100644
--- a/lib/linux/unlink.c
+++ b/lib/linux/unlink.c
@@ -24,5 +24,5 @@
 int
 unlink (char const *file_name)
 {
-  return _sys_call1 (SYS_unlink, (long) file_name);
+  return _sys_call1 (SYS_unlink, file_name);
 }