diff --git a/Linux-desktop-in-an-old-Android-tablet.md b/Linux-desktop-in-an-old-Android-tablet.md
index 460f35c..6f1e686 100644
--- a/Linux-desktop-in-an-old-Android-tablet.md
+++ b/Linux-desktop-in-an-old-Android-tablet.md
@@ -24,4 +24,6 @@ I decided to scrap the ubuntu environment for a debian one, and that's much bett
 
 The first necessary step, however, is to install Python from source. 
 
-These are the commands to set up the system
\ No newline at end of file
+These are the commands to set up the system
+
+MATHLIB="m" pip install numpy
\ No newline at end of file