Index: samba-4.10.1/libcli/security/util_sid.c
===================================================================
--- samba-4.10.1.orig/libcli/security/util_sid.c
+++ samba-4.10.1/libcli/security/util_sid.c
@@ -686,6 +686,16 @@ static const struct predefined_name_mapp
 };
 
 /*
+ * S-1-22
+ */
+static const struct predefined_name_mapping predefined_names_S_1_22[] = {
+	{
+		.name = "Unix",
+		.type = SID_NAME_DOMAIN,
+		.sid = _SID0(22), /* S-1-22 */
+	},
+};
+/*
  * S-1-16
  */
 static const struct predefined_name_mapping predefined_names_S_1_16[] = {
@@ -807,6 +817,12 @@ static const struct predefined_domain_ma
 		.num_names = ARRAY_SIZE(predefined_names_S_1_16),
 		.names = predefined_names_S_1_16,
 	},
+	{
+		.domain = "Unix",
+		.sid = _SID0(22), /* S-1-22 */
+		.num_names = ARRAY_SIZE(predefined_names_S_1_22),
+		.names = predefined_names_S_1_22,
+	},
 };
 
 NTSTATUS dom_sid_lookup_predefined_name(const char *name,