diff --git a/doc/SdA.txt b/doc/SdA.txt
index 4f626ec4..3aa0d8bb 100644
--- a/doc/SdA.txt
+++ b/doc/SdA.txt
@@ -410,7 +410,7 @@ to the training set for a fixed number of epochs given by
 
 The fine-tuning loop is very similar with the one in the :ref:`mlp`, the
 only difference is that we will use now the functions given by
-`build_finetune_functions`  .
+``build_finetune_functions``  .