diff --git a/source/5/5.4/window_management.rst b/source/5/5.4/window_management.rst
index efdaa449..e455792a 100644
--- a/source/5/5.4/window_management.rst
+++ b/source/5/5.4/window_management.rst
@@ -1,7 +1,7 @@
 Chapter 5.4 Window Management
 =============================
 
-Window are the area which contains the graphical user interface that we interact with programs. In Lubuntu these windows can typically be opened, closed, resized, and minimized. Underneath Lubuntu uses Openbox as default a window manager.
+Window are the area which contains the graphical user interface that we interact with programs. In Lubuntu these windows can typically be opened, closed, resized, and minimized. Underneath Lubuntu uses Openbox as a default window manager.
 
 Using the mouse
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