diff --git a/specification/modules/tags.rst b/specification/modules/tags.rst
index 4d88c771..5fe6345f 100644
--- a/specification/modules/tags.rst
+++ b/specification/modules/tags.rst
@@ -30,7 +30,7 @@ rooms with that tag that have an ``order`` key.
 
 The name of a tag MUST not exceed 255 bytes.
 
-{{m_tag_event}
+{{m_tag_event}}
 
 Client Behaviour
 ----------------