diff --git a/modules/TextTransform.py b/modules/TextTransform.py
index e90735f..de79500 100644
--- a/modules/TextTransform.py
+++ b/modules/TextTransform.py
@@ -43,7 +43,7 @@ class TextTransform(Module):
 
         whats = what.split(' ')
         if whats[0] == "rot13":
-            reply[0] = ' '.join(whats[1:]).decode('rot13')
+            reply[0] = ' '.join(whats[1:]).encode('rot13', 'ignore')
             return True
 
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