diff --git a/app/app.sh b/app/app.sh
index 37a5fd6..3c266a6 100755
--- a/app/app.sh
+++ b/app/app.sh
@@ -16,7 +16,7 @@ TERM_handler() {
     if [ ${PID} -ne 0 ]; then
         ps -ef --forest
         CHILDS=$(pgrep -P "${PID}")
-        kill -SIGTERM -"${PID}"
+        kill -SIGHUP $CHILDS
         for i in $CHILDS; do
           wait $i
         done