diff --git a/autoload.vim b/autoload.vim
index 9c6b601..3fe222a 100644
--- a/autoload.vim
+++ b/autoload.vim
@@ -253,7 +253,7 @@ function! s:rename_variable() " {{{1
   " Clear highlighting of occurrences.
   call map(highlights, 'matchdelete(v:val)')
   " Perform rename?
-  if newname != '' && newname != oldname
+  if newname != '' && newname !=# oldname
     let num_renamed = 0
     for fields in reverse(b:luainspect_output[1:-1])
       let [linenum, firstcol, lastcol] = split(fields)
diff --git a/luainspect.vim b/luainspect.vim
index b7fc0ce..c0f5305 100644
--- a/luainspect.vim
+++ b/luainspect.vim
@@ -2,7 +2,7 @@
 " Author: Peter Odding <peter@peterodding.com>
 " Last Change: August 16, 2010
 " URL: http://peterodding.com/code/vim/lua-inspect/
-" Version: 0.4.2
+" Version: 0.4.3
 " License: MIT
 
 " Support for automatic update using the GLVS plug-in.