--- /home/marc/www/lib/jQuery/diffs/core.js
+++ /home/marc/www/lib/jQuery/diffs/core.boo.js
@@ -252,7 +252,12 @@

 	wrapInner: function( html ) {
 		return this.each(function(){
-			jQuery( this ).contents().wrapAll( html );
+			var $this = jQuery( this );
+			if ( $this.contents().length ) {
+				$this.contents().wrapAll( html );
+			} else {
+				$this.html( html );
+			}
 		});
 	},