diff --git a/ssmembership/management/commands/send_renewal_email.py b/ssmembership/management/commands/send_renewal_email.py
index 08e9f26..26722b5 100644
--- a/ssmembership/management/commands/send_renewal_email.py
+++ b/ssmembership/management/commands/send_renewal_email.py
@@ -1,5 +1,5 @@
 #    Society Self-Service
-#    Copyright © 2018-2020  Yingtong Li (RunasSudo)
+#    Copyright © 2018-2022  Yingtong Li (RunasSudo)
 #
 #    This program is free software: you can redistribute it and/or modify
 #    it under the terms of the GNU Affero General Public License as published by
@@ -35,8 +35,9 @@ class Command(BaseCommand):
 	help = 'Send emails for membership renewal'
 	
 	def add_arguments(self, parser):
-		parser.add_argument('ids', nargs='*', type=int, help='Members with ID numbers equal to these values will be emailed (default all)')
-		parser.add_argument('--render', action='store_true', help='Render to stdout instead of sending emails')
+		parser.add_argument('ids', nargs='*', type=int, help='Members with ID numbers equal to these values will be emailed')
+		parser.add_argument('--all', action='store_true', help='Email all members rather than only specified IDs')
+		#parser.add_argument('--render', action='store_true', help='Render to stdout instead of sending emails')
 	
 	def handle(self, *args, **options):
 		today = timezone.localtime(timezone.now()).date()
@@ -44,14 +45,15 @@ class Command(BaseCommand):
 		template_html = loader.get_template('ssmembership/email/renew.html')
 		template_txt = loader.get_template('ssmembership/email/renew.txt')
 		
-		if len(options['ids']) > 0:
+		if options['all']:
+			members = models.Member.objects.all()
+		elif len(options['ids']) > 0:
 			members = models.Member.objects.filter(id__in=options['ids'])
 		else:
-			raise Exception('Must provide IDs')
+			raise Exception('Must provide IDs or specify --all')
 		
 		emailer = Emailer()
 		for member in members:
-			#import pdb; pdb.set_trace()
 			if member.member_type != 1 or member.expires < today or member.expires > today.replace(month=12, day=31):
 				self.stdout.write('Skipping {} at {}'.format(member.id, member.email))
 				continue