diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 8e33d0244..68ea21ea9 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -2376,7 +2376,7 @@ have the following in your .vimrc: >
 
 MEDIAWIKI					*ft-mediawiki-syntax*
 
-Be default, syntax highlighting includes basic HTML tags like style and
+By default, syntax highlighting includes basic HTML tags like style and
 headers |html.vim|. For strict Mediawiki syntax highlighting: >
 
 	let g:html_no_rendering = 1
diff --git a/runtime/ftplugin/mediawiki.vim b/runtime/ftplugin/mediawiki.vim
index efd2ae5c9..461824610 100644
--- a/runtime/ftplugin/mediawiki.vim
+++ b/runtime/ftplugin/mediawiki.vim
@@ -8,7 +8,7 @@
 if exists("b:did_ftplugin")
   finish
 endif
-let g:did_ftplugin = 1
+let b:did_ftplugin = 1
 
 " Many MediaWiki wikis prefer line breaks only at the end of paragraphs
 " (like in a text processor), which results in long, wrapping lines.