diff --git a/liquid_tags/notebook.py b/liquid_tags/notebook.py
index 7df9479..5b17384 100644
--- a/liquid_tags/notebook.py
+++ b/liquid_tags/notebook.py
@@ -109,19 +109,15 @@ img.anim_icon{padding:0; border:0; -webkit-box-shadow:none; -box-shadow:none}
-"""
-# This, for some reason, results in paranthetical statements being rendered
-# in math mode.
-DONT_USE = """