diff --git a/kameleon/README.md b/kameleon/README.md
index a0a350014794132fcfb057ab77ecc202b7918ab1..92f36c179941e691bc15ad1b4adc471f435e6b05 100644
--- a/kameleon/README.md
+++ b/kameleon/README.md
@@ -25,6 +25,7 @@ frontend$ oarsub "sleep 2h" -l nodes=1,walltime=2
 Once the job is running, connect to your node and install the required components:
 
 ```
+node$ pip2 install --user execo
 node$ gem install --user-install kameleon-builder
 ```