diff --git a/swh/scheduler/cli.py b/swh/scheduler/cli.py
--- a/swh/scheduler/cli.py
+++ b/swh/scheduler/cli.py
@@ -205,9 +205,11 @@
 @click.argument('options', nargs=-1)
 @click.option('--policy', '-p', default='recurring',
               type=click.Choice(['recurring', 'oneshot']))
+@click.option('--priority', '-P', default='low',
+              type=click.Choice(['low', 'normal', 'high']))
 @click.option('--next-run', '-n', default=None)
 @click.pass_context
-def schedule_task(ctx, type, options, policy, next_run):
+def schedule_task(ctx, type, options, policy, priority, next_run):
     """Schedule one task from arguments.
 
     Use sample:
@@ -229,6 +231,7 @@
     kw = dict(x.split('=', 1) for x in options if '=' in x)
     task = {'type': type,
             'policy': policy,
+            'priority': priority,
             'arguments': {
                 'args': args,
                 'kwargs': kw,