diff --git a/doc/install_for_developers.md b/doc/install_for_developers.md
index 98b64645ec311a41943efcac3cc27368aeac8a32..e740ae3b4b5c694422e07d91f057c0c705df165b 100644
--- a/doc/install_for_developers.md
+++ b/doc/install_for_developers.md
@@ -95,6 +95,15 @@ If you are running El Capitan (MacOS 10.10), you'll need to run `xcode-select --
 #### Pyenv environment 
 
 ##### Build python 3.5.3
+
+Building python 3.5.3 requires libraries of `openssl` and `sqlite3`. On Ubuntu, install it using the following commands : 
+
+```
+apt-get update
+apt-get install libssl-dev
+apt-get install libsqlite3-dev
+```
+
 Restart your shell then prepare your virtualenv: 
 
 On GNU/Linux: `PYTHON_CONFIGURE_OPTS="--enable-shared" pyenv install 3.5.3`