diff --git a/.gitignore b/.gitignore
index 16bcb8d..60d3ed7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,7 @@
 
 # ignore yard doc files
 .yardoc/*
+
+# ignore yard generated documents
+/doc/*
+!/doc/README_FOR_APP