diff --git a/src/ngSanitize/sanitize.js b/src/ngSanitize/sanitize.js
index de6dd3dd135d..88d2bf2ef47b 100644
--- a/src/ngSanitize/sanitize.js
+++ b/src/ngSanitize/sanitize.js
@@ -209,7 +209,7 @@ var validAttrs = angular.extend({}, uriAttrs, makeMap(
     'abbr,align,alt,axis,bgcolor,border,cellpadding,cellspacing,class,clear,'+
     'color,cols,colspan,compact,coords,dir,face,headers,height,hreflang,hspace,'+
     'ismap,lang,language,nohref,nowrap,rel,rev,rows,rowspan,rules,'+
-    'scope,scrolling,shape,size,span,start,summary,target,title,type,'+
+    'scope,scrolling,shape,size,span,start,summary,tabindex,target,title,type,'+
     'valign,value,vspace,width'));
 
 function makeMap(str) {