diff --git a/modules/rot13.py b/modules/rot13.py
new file mode 100644
index 00000000..894bcc3c
--- /dev/null
+++ b/modules/rot13.py
@@ -0,0 +1,9 @@
+import codecs
+from src import ModuleManager, utils
+
+class Module(ModuleManager.BaseModule):
+    @utils.hook("received.command.rot13")
+    def rot13(self, event):
+        line = event["args"] or event["target"].buffer.get().message
+        event["stdout"].write("%s: %s" % (event["user"].nickname,
+            codecs.encode(line, "rot_13")))