diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 33509266f5a0..793fc7db9d28 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2195,6 +2195,9 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
 	if (!dentry->d_name.len)
 		return -EINVAL;
 
+	if (fscrypt_is_nokey_name(dentry))
+		return -ENOKEY;
+
 #ifdef CONFIG_UNICODE
 	if (sb_has_strict_encoding(sb) && IS_CASEFOLDED(dir) &&
 	    sb->s_encoding && utf8_validate(sb->s_encoding, &dentry->d_name))