diff --git a/modules/ban_join.py b/modules/ban_join.py
new file mode 100644
index 0000000..89af4d8
--- /dev/null
+++ b/modules/ban_join.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+"""
+Bans a user as soon as they join a channel.
+"""
+import time
+
+from module import user_joined
+from tools import configureHostMask
+
+@user_joined(True)
+def ban_join(bot, trigger):
+	"""
+	Bans a user as soon as they join a channel.
+	"""
+	banhee = trigger.nick
+	banmask = configureHostMask(banhee)
+	period = 30
+
+	bot.mode(trigger.channel, True, "b", mask=banmask)
+	time.sleep(period)
+	bot.mode(trigger.channel, False, "b", mask=banmask)