diff --git a/index.html b/index.html
index 855f55e..d799953 100644
--- a/index.html
+++ b/index.html
@@ -218,7 +218,8 @@ var config = {
 </head>
 <body onload="read_links()">
 <div id="search"><input type="text" oninput="filter(event)" onkeypress="filter(event)" onblur="no_filter()" id="filter" title="Filter links by name">
-  <span class=tickbox><input type=checkbox id=open_blank title="Open links in new window" onclick="toggle_blank()" tabindex=-1></span>
+  <span class=tickbox>&#10697;<input type=checkbox id=open_blank title="Open links in new window" onclick="toggle_blank()" tabindex=-1>
+  </span>
 </div>
 <div id="main"></div>
 </body>
