diff --git a/global_attrs_schema.json b/global_attrs_schema.json
index ec309af..a4330ba 100644
--- a/global_attrs_schema.json
+++ b/global_attrs_schema.json
@@ -368,6 +368,7 @@
                 "CCAM-v2105",
                 "CCAM-v2112",
                 "CCAMoc-v2112",
+                "CCLM6-0-1-URB-ESG",
                 "CNRM-ALADIN64E1",
                 "CNRM-ALADIN64P1",
                 "CRCM5-SN",