diff --git a/docs/source/config/inputtransforms.rst b/docs/source/config/inputtransforms.rst
index dbb8d25..581e3b2 100644
--- a/docs/source/config/inputtransforms.rst
+++ b/docs/source/config/inputtransforms.rst
@@ -109,7 +109,6 @@ line in a cell::
                 while line is not None:
                     line = (yield line)
 
-    leading_indent.look_in_string = True
 
 Token-based transformers
 ------------------------