diff --git a/fs/bcachefs/errcode.h b/fs/bcachefs/errcode.h
index 60b7875adada..4119ef5e1fa1 100644
--- a/fs/bcachefs/errcode.h
+++ b/fs/bcachefs/errcode.h
@@ -102,6 +102,7 @@
 	x(ENOSPC,			ENOSPC_sb_downgrade)			\
 	x(ENOSPC,			ENOSPC_btree_slot)			\
 	x(ENOSPC,			ENOSPC_snapshot_tree)			\
+	x(EPERM,			EPERM_fc_root)				\
 	x(ENOENT,			ENOENT_bkey_type_mismatch)		\
 	x(ENOENT,			ENOENT_str_hash_lookup)			\
 	x(ENOENT,			ENOENT_str_hash_set_must_replace)	\