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path: root/synapse/rest/media/v1/preview_url_resource.py
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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 27aa0def2f..778ef97337 100644
--- a/synapse/rest/media/v1/preview_url_resource.py
+++ b/synapse/rest/media/v1/preview_url_resource.py
@@ -42,7 +42,7 @@ from synapse.http.server import (
 )
 from synapse.http.servlet import parse_integer, parse_string
 from synapse.metrics.background_process_metrics import run_as_background_process
-from synapse.util.async import ObservableDeferred
+from synapse.util.async_helpers import ObservableDeferred
 from synapse.util.caches.expiringcache import ExpiringCache
 from synapse.util.logcontext import make_deferred_yieldable, run_in_background
 from synapse.util.stringutils import is_ascii, random_string