diff --git a/source/4/4.3/software_sources.rst b/source/4/4.3/software_sources.rst
index d27f3269..f267ff4e 100644
--- a/source/4/4.3/software_sources.rst
+++ b/source/4/4.3/software_sources.rst
@@ -19,7 +19,7 @@ The :guilabel:`Ubuntu Software` tab contains settings involving the downloading
 
 .. image::   ubuntu_software-tab.png
 
-The :guilabel:`Other software` tab allows you to add, remove or edit other software sources.  Here you can manage remote repositories (PPAs) and CD-ROM repositories.To enable/disable a software source click the checkbox to the left of its name. To remove software from the list left click the :guilabel:`Remove` button. 
+The :guilabel:`Other software` tab allows you to add, remove or edit other software sources.  Here you can manage remote repositories (PPAs) and CD-ROM repositories.To enable/disable a software source click the checkbox to the left of its name. To remove software from the list left click the :guilabel:`Remove` button. To add a third party source of software to your system press the :guilabel:`Add` button.
 
 .. image::  other-software-sources.png