diff --git a/source/4/4.2/muon.rst b/source/4/4.2/muon.rst
index 04eb3706..7406a37b 100644
--- a/source/4/4.2/muon.rst
+++ b/source/4/4.2/muon.rst
@@ -1,7 +1,7 @@
 Chapter 4.2 Muon Package Manager
 ================================
 
-Muon package manager is an alternative GUI for installing and updating updating packages. 
+Muon package manager is an alternative GUI for installing and updating packages. 
 
 Usage
 ------