diff --git a/synapse/start.sh b/synapse/start.sh
index 785909a0b1..12b89b31ed 100755
--- a/synapse/start.sh
+++ b/synapse/start.sh
@@ -3,4 +3,10 @@ BASE_DIR=$(readlink -f $(dirname $0))
 cd $BASE_DIR
 cd installations/consent
 source env/bin/activate
-./synctl start 2> /dev/null
+LOGFILE=$(mktemp)
+./synctl start 2> $LOGFILE
+EXIT_CODE=$?
+if [ $EXIT_CODE -ne 0 ]; then
+	cat $LOGFILE
+fi
+exit $EXIT_CODE
\ No newline at end of file