diff --git a/aztec-up/bin/aztec b/aztec-up/bin/aztec
index b25e54f545e2..78a446dcc4fc 100755
--- a/aztec-up/bin/aztec
+++ b/aztec-up/bin/aztec
@@ -33,7 +33,8 @@ elif [ $# == 2 ] && [ "$1" == "start" ] && [ "$2" == "--sandbox" ]; then
   trap cleanup SIGINT
 
  get_compose -p sandbox $FILE_ARG up --force-recreate --remove-orphans
-else 
+elif [ "$1" == "start" ]; then
   $(dirname $0)/.aztec-run aztecprotocol/aztec "$@"
+else
+  SKIP_PORT_ASSIGNMENT=1 $(dirname $0)/.aztec-run aztecprotocol/aztec "$@"
 fi
-