diff --git a/tools/vim/README.txt b/tools/vim/README.txt
index 82f608db1b..eb040aa4cd 100644
--- a/tools/vim/README.txt
+++ b/tools/vim/README.txt
@@ -3,7 +3,8 @@
 
 The files provided in this directory will enable syntax highlighting
 for the lammps script syntax in vim. The simulation scripts have to
-end on .lmp (see mysyntax.vim).  By far not all commands are included
+end on *.lmp or start with in.* (see mysyntax.vim).  
+By far not all commands are included
 in the syntax file (lammps.vim). You can easily add new ones.
 
 =To enable the highlighting:
@@ -31,11 +32,8 @@ if exists("did_load_filetypes")
 endif
 
 augroup filetypedetect
- au! BufRead,BufNewFile *.pdb          setfiletype none
- au! BufRead,BufNewFile *.psf          setfiletype none
-
- au! BufRead,BufNewFile *.cu           setfiletype c
  au! BufRead,BufNewFile in.*           setfiletype lammps
+ au! BufRead,BufNewFile *.lmp          setfiletype lammps
 augroup END
 (4) the end
 
diff --git a/tools/vim/mysyntax.vim b/tools/vim/mysyntax.vim
index 7c2d46ef52..9fe9071b3a 100644
--- a/tools/vim/mysyntax.vim
+++ b/tools/vim/mysyntax.vim
@@ -1,3 +1,4 @@
 augroup syntax
 au  BufNewFile,BufReadPost *.lmp so ~/.vim/lammps.vim
+au  BufNewFile,BufReadPost in.* so ~/.vim/lammps.vim
 augroup END