diff --git a/IPython/Extensions/ipy_kitcfg.py b/IPython/Extensions/ipy_kitcfg.py
index c3d4ae4..a638b29 100644
--- a/IPython/Extensions/ipy_kitcfg.py
+++ b/IPython/Extensions/ipy_kitcfg.py
@@ -24,6 +24,7 @@ def main():
     
     ip.defalias('py',selflaunch)
     
+    ip.defalias('ls','ls -F')
 
 main()