diff --git a/.rultor.yml b/.rultor.yml
index 52b47a3c..3a118844 100644
--- a/.rultor.yml
+++ b/.rultor.yml
@@ -1,4 +1,6 @@
 install: |
+  export GEM_HOME=~/.ruby
+  export GEM_PATH=$GEM_HOME:$GEM_PATH
   sudo apt-get update
   sudo gem install pdd
   sudo apt-get install -y pandoc