diff --git a/gui.rst b/gui.rst
index 54f82a9..ff8b17b 100644
--- a/gui.rst
+++ b/gui.rst
@@ -4,7 +4,16 @@ GUI Applications
 Step 1: Installing an X Server
 ------------------------------
 
+In order to run GUI applications in WSL, you need to first install an X Server on your Windows machine. 
+I recommend installing `Xming <https://sourceforge.net/projects/xming/>`_. 
+
 Step 2: Set DISPLAY Environment Variable
 ----------------------------------------
 
+Next, you have to tell your WSL environment to use the X Server by setting the ``DISPLAY`` environment variable. 
+
+I added the following to my ``~/.bashrc``::
+
+    export DISPLAY=:0
+