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path: root/synapse/rest/client/v2_alpha/keys.py
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Diffstat (limited to 'synapse/rest/client/v2_alpha/keys.py')
-rw-r--r--synapse/rest/client/v2_alpha/keys.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/rest/client/v2_alpha/keys.py b/synapse/rest/client/v2_alpha/keys.py
index 7abd6ff333..55c4606569 100644
--- a/synapse/rest/client/v2_alpha/keys.py
+++ b/synapse/rest/client/v2_alpha/keys.py
@@ -180,6 +180,7 @@ class KeyChangesServlet(RestServlet):
         super().__init__()
         self.auth = hs.get_auth()
         self.device_handler = hs.get_device_handler()
+        self.store = hs.get_datastore()
 
     async def on_GET(self, request):
         requester = await self.auth.get_user_by_req(request, allow_guest=True)
@@ -191,7 +192,7 @@ class KeyChangesServlet(RestServlet):
         # changes after the "to" as well as before.
         set_tag("to", parse_string(request, "to"))
 
-        from_token = StreamToken.from_string(from_token_string)
+        from_token = await StreamToken.from_string(self.store, from_token_string)
 
         user_id = requester.user.to_string()