_includes/head.html in electric-book-classic-theme-0.1.2 vs _includes/head.html in electric-book-classic-theme-0.1.3

@@ -17,10 +17,10 @@
         <meta name="DC.Title" content="{{ title }}" />
         <meta name="DC.Language" content="{{ language }}" />
         <meta name="DC.Creator" content="{{ creator }}" />
         <meta name="DC.Publisher" content="{{ publisher }}" />
         <meta name="DC.Date" content="{{ date }}" />
-        <meta name="DC.Identifier" content="{{ epub-identifier }}" scheme="ISBN" />
+        <meta name="DC.Identifier" content="{{ epub-identifier }}" />
         <meta name="DC.Relation" content="{{ print-pdf-identifier }}" />
         <meta name="DC.Description" CONTENT="{{ description }}" />
 
     {% include head-elements %}