diff --git a/images/chromium-headful/supervisor/services/chromium.conf b/images/chromium-headful/supervisor/services/chromium.conf
index ae1f22e9..d68c4209 100644
--- a/images/chromium-headful/supervisor/services/chromium.conf
+++ b/images/chromium-headful/supervisor/services/chromium.conf
@@ -4,6 +4,8 @@ autostart=false
 autorestart=true
 startsecs=0
 stopsignal=KILL
-stopwaitsecs=0
+stopasgroup=true
+killasgroup=true
+stopwaitsecs=1
 stdout_logfile=/var/log/supervisord/chromium
 redirect_stderr=true
diff --git a/images/chromium-headless/image/supervisor/services/chromium.conf b/images/chromium-headless/image/supervisor/services/chromium.conf
index 7018e12a..5f55c8e0 100644
--- a/images/chromium-headless/image/supervisor/services/chromium.conf
+++ b/images/chromium-headless/image/supervisor/services/chromium.conf
@@ -4,6 +4,8 @@ autostart=false
 autorestart=true
 startsecs=0
 stopsignal=KILL
-stopwaitsecs=0
+stopasgroup=true
+killasgroup=true
+stopwaitsecs=1
 stdout_logfile=/var/log/supervisord/chromium
 redirect_stderr=true