1 files changed, 1 insertions, 1 deletions
diff --git a/src/xml.c b/src/xml.c
index 939a821..ef95484 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -51,7 +51,7 @@ static int S_render_node(cmark_node *node, cmark_event_type ev_type,
 
     switch (node->type) {
     case CMARK_NODE_DOCUMENT:
-      cmark_strbuf_puts(xml, " xmlns=\"http://commonmark.org/xml/\"");
+      cmark_strbuf_puts(xml, " xmlns=\"http://commonmark.org/xml/1.0\"");
       break;
     case CMARK_NODE_TEXT:
     case CMARK_NODE_CODE: