diff --git a/installer/run-maxkb.sh b/installer/run-maxkb.sh
index 0c26a471d..4f388f695 100644
--- a/installer/run-maxkb.sh
+++ b/installer/run-maxkb.sh
@@ -4,7 +4,7 @@
 docker-entrypoint.sh postgres &
 
 # Wait postgress
-until pg_isready --host=3333; do sleep 1 && echo "waiting for postgres"; done
+until pg_isready --host=127.0.0.1; do sleep 1 && echo "waiting for postgres"; done
 
 # Start MaxKB
 python /opt/maxkb/app/main.py start &