1 files changed, 6 insertions, 0 deletions
diff --git a/components/client-data-table/data-table-group-list.tsx b/components/client-data-table/data-table-group-list.tsx
index 519b7327..6fe738e2 100644
--- a/components/client-data-table/data-table-group-list.tsx
+++ b/components/client-data-table/data-table-group-list.tsx
@@ -55,6 +55,12 @@ export function ClientDataTableGroupList<TData>({
     () =>
       table
         .getAllColumns()
+        .flatMap((column) => {
+          if (column.columns && column.columns.length > 0) {
+            return column.columns.filter(c => c.getCanGroup());
+          }
+          return column.getCanGroup() ? [column] : [];
+        })
         .filter((col) => col.getCanGroup?.() !== false)
         .map((col) => {
           // If meta?.excelHeader is missing or undefined, fall back to `col.id`