diff --git a/automated/run-nightly.sh b/automated/run-nightly.sh
index ed63364f..fe5e2c0a 100755
--- a/automated/run-nightly.sh
+++ b/automated/run-nightly.sh
@@ -4,11 +4,11 @@ cd "$(dirname "${BASH_SOURCE[0]}")"
 
 while true; do
     ./build.sh nightly-$(date -u +%F)
-
-    date
-    echo -n "Running cron.sh (do not interrupt)... "
-    ./cron.sh > cron.log 2>&1
-    echo "done."
+    if ! pgrep cron.sh >/dev/null; then
+        echo
+        echo "Running cron.sh in the background"
+        ./cron.sh > cron.log 2>&1 &
+    fi
     echo
     date