diff --git a/unix/syscall_freebsd_test.go b/unix/syscall_freebsd_test.go
index 323f757c..654439e0 100644
--- a/unix/syscall_freebsd_test.go
+++ b/unix/syscall_freebsd_test.go
@@ -21,7 +21,7 @@ import (
 )
 
 func TestSysctlUint64(t *testing.T) {
-	_, err := unix.SysctlUint64("security.mac.labeled")
+	_, err := unix.SysctlUint64("vm.swap_total")
 	if err != nil {
 		t.Fatal(err)
 	}