diff --git a/source/C/command_line.rst b/source/C/command_line.rst
index 153db63e..1cf3ac6b 100644
--- a/source/C/command_line.rst
+++ b/source/C/command_line.rst
@@ -58,5 +58,4 @@ If you want just to see the contents of a file on standard output run
 
    cat [filename]
    
-
-
+If you have a command and you don't want to type the whole thing out you can press the :kbd:`tab` key.