diff --git a/modules/channel_blacklist.py b/modules/channel_blacklist.py
new file mode 100644
index 00000000..aa3213f3
--- /dev/null
+++ b/modules/channel_blacklist.py
@@ -0,0 +1,30 @@
+from src import EventManager, ModuleManager, utils
+
+@utils.export("channelset", utils.BoolSetting("blacklist",
+    "Refuse to join a given channel"))
+class Module(ModuleManager.BaseModule):
+    @utils.hook("preprocess.send.join")
+    @utils.kwarg("priority", EventManager.PRIORITY_HIGH)
+    def preprocess_send_join(self, event):
+        if event["line"].args:
+            channels = event["line"].args[0].split(",")
+            keys = event["line"].args[1:]
+
+            remove = []
+            for channel_name in channels:
+                id = event["server"].channels.get_id(channel_name, create=False)
+                if not id == None:
+                    if self.bot.database.channel_settings.get(id, "blacklist",
+                            False):
+                        remove.append(channel_name)
+                        if keys:
+                            keys.pop(0)
+            for channel_name in remove:
+                channels.remove(channel_name)
+
+            if remove:
+                if not channels:
+                    event["line"].invalidate()
+                else:
+                    event["line"].args[0] = ",".join(channels)
+                    event["line"].args[1:] = keys