diff --git a/UpdateEngine.conf b/UpdateEngine.conf
index dee64ee..3688250 100644
--- a/UpdateEngine.conf
+++ b/UpdateEngine.conf
@@ -49,6 +49,9 @@
     <allow send_destination="org.chromium.UpdateEngine"
            send_interface="org.chromium.UpdateEngineInterface"
            send_member="GetUpdateOverCellularPermission"/>
+    <allow send_destination="org.chromium.UpdateEngine"
+           send_interface="org.chromium.UpdateEngineInterface"
+           send_member="GetDurationSinceUpdate"/>
     <allow send_interface="org.chromium.UpdateEngineLibcrosProxyResolvedInterface" />
   </policy>
   <policy context="default">