diff --git a/runtime/syntax/diff.vim b/runtime/syntax/diff.vim
index a000514..ff69c58 100644
--- a/runtime/syntax/diff.vim
+++ b/runtime/syntax/diff.vim
@@ -2,7 +2,7 @@
 " Language:	Diff (context or unified)
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
 "               Translations by Jakson Alves de Aquino.
-" Last Change:	2014 Nov 12
+" Last Change:	2015 Jan 07
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -18,6 +18,9 @@
 syn match diffNoEOL	"^\\ No newline at end of file .*"
 syn match diffCommon	"^Common subdirectories: .*"
 
+" Disable the translations by setting diff_translations to zero.
+if !exists("diff_translations") || diff_translations
+
 " ca
 syn match diffOnly	"^Només a .*"
 syn match diffIdentical	"^Els fitxers .* i .* són idèntics$"
@@ -320,6 +323,8 @@
 syn match diffNoEOL	"^\\ 檔案末沒有 newline 字元"
 syn match diffCommon	"^.* 和 .* 有共同的副目錄$"
 
+endif
+
 
 syn match diffRemoved	"^-.*"
 syn match diffRemoved	"^<.*"