1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/rest/client/v1/base.py b/synapse/rest/client/v1/base.py
index 07ff5b218c..c7aa0bbf59 100644
--- a/synapse/rest/client/v1/base.py
+++ b/synapse/rest/client/v1/base.py
@@ -60,4 +60,4 @@ class ClientV1RestServlet(RestServlet):
         self.hs = hs
         self.builder_factory = hs.get_event_builder_factory()
         self.auth = hs.get_v1auth()
-        self.txns = HttpTransactionCache()
+        self.txns = HttpTransactionCache(hs.get_clock())