diff --git a/doc/src/Autoencoders/Autoencoders.do.txt b/doc/src/Autoencoders/Autoencoders.do.txt
index 3ce626552..c65839d06 100644
--- a/doc/src/Autoencoders/Autoencoders.do.txt
+++ b/doc/src/Autoencoders/Autoencoders.do.txt
@@ -5,6 +5,7 @@ DATE: today
 !split
 =====  Tod do =====
 
+* make example link with pca
 * develop examples and add more text
 * excellent website http://ufldl.stanford.edu/tutorial/unsupervised/Autoencoders/