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-rw-r--r--synapse/rest/media/v1/preview_url_resource.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py
index 4e4100bdec..33f35fb44e 100644
--- a/synapse/rest/media/v1/preview_url_resource.py
+++ b/synapse/rest/media/v1/preview_url_resource.py
@@ -449,7 +449,7 @@ def _iterate_over_text(tree, *tags_to_ignore):
         el = elements.next()
         if isinstance(el, basestring):
             yield el
-        elif el.tag not in tags_to_ignore:
+        elif el is not None and el.tag not in tags_to_ignore:
             # el.text is the text before the first child, so we can immediately
             # return it if the text exists.
             if el.text: