diff --git a/jenkins-dendron-postgres.sh b/jenkins-dendron-postgres.sh
index 70edae4328..55ff31fd18 100755
--- a/jenkins-dendron-postgres.sh
+++ b/jenkins-dendron-postgres.sh
@@ -22,3 +22,4 @@ export SYNAPSE_CACHE_FACTOR=1
     --federation-reader \
     --client-reader \
     --appservice \
+    --federation-sender \