diff --git a/doc/install_pip.md b/doc/install_pip.md
index 64b598be833de9fdc042b9f3a9feca5018b27ed4..be7a8ae8a214e70acf807c8e8be35996751a918b 100644
--- a/doc/install_pip.md
+++ b/doc/install_pip.md
@@ -6,11 +6,18 @@
 sudo apt install python3-pip libssl-dev
 ```
 
-On Ubuntu 14.04 and Debian 8, you need this package too:
+On Ubuntu (14.04 and 16.04) and Debian 8, you need this package too:
 ```bash
 sudo apt install libffi-dev
 ```
 
+Your system must use UTF-8 locales.
+
+Linux Mint is reported to require the installation of this package too:
+```
+sudo apt install python3-dev
+```
+
 ## Install from Pypi
 
 ```bash