diff --git a/syntax/javascript.vim b/syntax/javascript.vim
index d4f6a9c..712eec5 100644
--- a/syntax/javascript.vim
+++ b/syntax/javascript.vim
@@ -174,6 +174,7 @@ syntax match   javaScriptFuncArg         "\(([^()]*)\)" contains=javaScriptParen
 syntax match   javaScriptFuncComma       /,/ contained
 syntax match   javaScriptFuncEq          /=/ contained
 syntax region  javaScriptFuncDef         start="\<function\>" end="\([^)]*\)" contains=javaScriptFuncKeyword,javaScriptFuncArg keepend
+syntax match jsFunctionKey /\<[a-zA-Z_$][0-9a-zA-Z_$]*\>\(\s*:\s*function\s*\)\@=/ contained
 "}}}
 " Braces, Parens, symbols, colons {{{
 syntax match javaScriptBraces       "[{}\[\]]"