diff --git a/runtime/syntax/redif.vim b/runtime/syntax/redif.vim
index 9fa9064..3651922 100644
--- a/runtime/syntax/redif.vim
+++ b/runtime/syntax/redif.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:          ReDIF
 " Maintainer:        Axel Castellane <axel.castellane@polytechnique.edu>
-" Last Change:       2013 April 17
+" Last Change:       2021 Jul 28
 " Original Author:   Axel Castellane
 " Source:            http://openlib.org/acmes/root/docu/redif_1.html
 " File Extension:    rdf
@@ -932,7 +932,7 @@
 " Sync: The template-type (ReDIF-Paper, ReDIF-Archive, etc.) influences which
 " fields can follow. Thus sync must search backwards for it.
 "
-" I would like to simply ask VIM to search backward for the first occurence of
+" I would like to simply ask VIM to search backward for the first occurrence of
 " /^Template-Type:/, but it does not seem to be possible, so I have to start
 " from the beginning of the file... This might slow down a lot for files that
 " contain a lot of Template-Type statements.