diff --git a/Common-build-problems.md b/Common-build-problems.md
index 2dc5ecc..c4056c0 100644
--- a/Common-build-problems.md
+++ b/Common-build-problems.md
@@ -54,7 +54,7 @@ If you want to install a Python interpreter that's available to all users and sy
 
     sudo python-build 3.3.2 /usr/local/
 
-## Make your rubies a little faster
+## Make your pythons a little faster
 You can set your CFLAGS to accepted safe values to help get a little more speed.
 
     CFLAGS='-g -O2'