diff --git a/panda/src/doc/howto.install_panda_on_windows.txt b/panda/src/doc/howto.install_panda_on_windows.txt
index 4183d617c1..ed20b86c0d 100644
--- a/panda/src/doc/howto.install_panda_on_windows.txt
+++ b/panda/src/doc/howto.install_panda_on_windows.txt
@@ -245,10 +245,10 @@ of the world, see INSTALL.txt in this directory.
 *********************************************************************
 
   - All of the commands below have been collected in    
-    P:\win\install\wintools\etc\setup_env.csh.  To do all the Cygwin 
+    P:\win\install\wintools\etc\setup2.csh.  To do all the Cygwin 
     steps below automatically, from the tcsh prompt do:
     > cd P:/win/install/wintools/etc
-    > source setup_env.csh
+    > source setup2.csh
 
 ---------------------------------------------------------------------
   CAUTION: setup_env.csh: