diff --git a/build.sh b/build.sh
index 087b95f..2e8bf9b 100644
--- a/build.sh
+++ b/build.sh
@@ -35,7 +35,7 @@ $cdir/py3/bin/python $cdir/app/vdbapp.py -p 8887 -w $cdir &
 exit 0
 EOF
 cat > $cdir/stop.sh <<EOF
-PID=\$(lsof -t -i:9901)
+PID=\$(lsof -t -i:8887)
 kill -9 \$PID
 EOF
 chmod +x $cdir/start.sh stop.sh