diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 3f8e2d06b9cc0a0003a20ed9745909cd615d42d0..0f6b8172fb9ab1bed02439b130b306b42e22adf6 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -140,7 +140,7 @@ nf_hook_entries_grow(const struct nf_hook_entries *old,
 
 		if (reg->nat_hook && orig_ops[i]->nat_hook) {
 			kvfree(new);
-			return ERR_PTR(-EEXIST);
+			return ERR_PTR(-EBUSY);
 		}
 
 		if (inserted || reg->priority > orig_ops[i]->priority) {