diff --git a/swh/scheduler/celery_backend/config.py b/swh/scheduler/celery_backend/config.py
--- a/swh/scheduler/celery_backend/config.py
+++ b/swh/scheduler/celery_backend/config.py
@@ -8,6 +8,7 @@
 
 from celery import Celery
 from celery.signals import setup_logging
+from celery.utils.log import ColorFormatter
 from celery.worker.control import Panel
 
 from kombu import Exchange, Queue
@@ -45,6 +46,13 @@
     root_logger = logging.getLogger('')
     root_logger.setLevel(logging.INFO)
 
+    if loglevel == logging.DEBUG:
+        color_formatter = ColorFormatter(format) if colorize else formatter
+        console = logging.StreamHandler()
+        console.setLevel(logging.DEBUG)
+        console.setFormatter(color_formatter)
+        root_logger.addHandler(console)
+
     systemd_journal = JournalHandler()
     systemd_journal.setLevel(logging.DEBUG)
     systemd_journal.setFormatter(formatter)