diff --git a/IPython/Extensions/ext_rehashdir.py b/IPython/Extensions/ipy_rehashdir.py
similarity index 100%
rename from IPython/Extensions/ext_rehashdir.py
rename to IPython/Extensions/ipy_rehashdir.py
diff --git a/IPython/Extensions/ipy_system_conf.py b/IPython/Extensions/ipy_system_conf.py
index b6f5d60..e57ebc3 100644
--- a/IPython/Extensions/ipy_system_conf.py
+++ b/IPython/Extensions/ipy_system_conf.py
@@ -15,7 +15,6 @@ ip = IPython.ipapi.get()
 
 import sys
 
-import ext_rehashdir # %rehashdir magic
 import ext_rescapture # var = !ls and var = %magic
 import pspersistence # %store magic
 import clearcmd # %clear
diff --git a/IPython/UserConfig/ipy_profile_sh.py b/IPython/UserConfig/ipy_profile_sh.py
index 3114858..9b4987d 100644
--- a/IPython/UserConfig/ipy_profile_sh.py
+++ b/IPython/UserConfig/ipy_profile_sh.py
@@ -33,6 +33,7 @@ def main():
     import envpersist
     import ipy_which
     import ipy_stock_completers
+    import ipy_rehashdir
     
     
     ip.ex('import os')