diff -up nesc-1.3.1/tools/editor-modes/emacs/nesc.el.emacs nesc-1.3.1/tools/editor-modes/emacs/nesc.el
--- nesc-1.3.1/tools/editor-modes/emacs/nesc.el.emacs	2010-07-05 14:08:11.767397182 +0530
+++ nesc-1.3.1/tools/editor-modes/emacs/nesc.el	2010-07-05 14:08:37.865271327 +0530
@@ -21,8 +21,8 @@
 
 ;; Load appropriate version of nesC emacs mode
 (if (string-match "^5.2[0-9]" c-version)
-    (load-library "old-nesc.el")
-  (load-library "new-nesc.el"))
+    (load-library "old-nesc")
+  (load-library "new-nesc"))
 
 ;; c-font-lock-declarators has a bug (spams a warning message) when
 ;; editing enum's with '=' in font-lock-mode, in 5.30.9. Redefine it.