diff --git a/appservice.py b/appservice.py
index 76f02a3..13bec39 100644
--- a/appservice.py
+++ b/appservice.py
@@ -155,8 +155,11 @@ def new_sticker(event, user):
     value = {'type': "photo", 'version': "1.0"}
     value['url'] = app.config['MATRIX_URL'] + '/_matrix/media/r0/download/' + event['content']['url'][6:]
     value['title'] = event['content']['body']
-    value['width'] = event['content']['info']['thumbnail_info']['w']
-    value['height'] = event['content']['info']['thumbnail_info']['h']
+    if 'h' in event['content']['info'] and 'w' in event['content']['info']:
+        value['height'] = event['content']['info']['h']
+        value['width'] = event['content']['info']['h']
+    else:
+        return
     raw = {'type': "io.pnut.core.oembed", 'value': value}
     embed = [raw]
     text = prefix + text