diff --git a/ports/list-ports.sh b/ports/list-ports.sh
index c09679ef..d812c1fe 100755
--- a/ports/list-ports.sh
+++ b/ports/list-ports.sh
@@ -29,6 +29,7 @@ unset_vars()
 if ! [ -f ./ports.list ]
 then
     echo "No ports installed."
+    exit 0
 fi
 
 export HAVE_PORTS=0