diff --git a/src/kernel/emulation/linux/unistd/fchmod_extended.c b/src/kernel/emulation/linux/unistd/fchmod_extended.c
index e1a43ae7e..828d75976 100644
--- a/src/kernel/emulation/linux/unistd/fchmod_extended.c
+++ b/src/kernel/emulation/linux/unistd/fchmod_extended.c
@@ -3,10 +3,18 @@
 #include "../errno.h"
 #include <linux-syscalls/linux.h>
 
+#include <sys/types.h>
+#include <sys/kauth.h>
+
 long sys_fchmod_extended(int fd, int uid, int gid, int mode, void* xsec)
 {
 	int ret;
 
+	// apparently, these are supposed to go through successfully
+	if (uid == KAUTH_UID_NONE || gid == KAUTH_GID_NONE || mode == -1) {
+		return 0;
+	}
+
 	ret = LINUX_SYSCALL2(__NR_fchmod, fd, mode);
 	if (ret < 0)
 		return errno_linux_to_bsd(ret);