doc UPDATE missing doxygen
diff --git a/src/printer_xml.c b/src/printer_xml.c
index 63c8259..519bf1b 100644
--- a/src/printer_xml.c
+++ b/src/printer_xml.c
@@ -163,7 +163,10 @@
 }
 
 /**
- * TODO
+ * @brief Print metadata of a node.
+ *
+ * @param[in] pctx XML printer context.
+ * @param[in] node Data node with metadata.
  */
 static void
 xml_print_meta(struct xmlpr_ctx *pctx, const struct lyd_node *node)