--- kernel/write.c.orig	2026-05-16 11:29:35 UTC
+++ kernel/write.c
@@ -655,7 +655,7 @@ workbook_file(xls_resource_write_t *self)
         if (worksheet->index == self->workbook->active_sheet)
             worksheet->active = 1;
 
-        if (worksheet->has_dynamic_arrays)
+        if (worksheet->has_dynamic_functions)
             self->workbook->has_metadata = LXW_TRUE;
     }