diff --git a/isso/js/app/isso.js b/isso/js/app/isso.js
index 40fa30c..7d8cb75 100644
--- a/isso/js/app/isso.js
+++ b/isso/js/app/isso.js
@@ -16,7 +16,7 @@ define(["app/text/html", "app/dom", "app/utils", "app/api", "app/markup", "app/i
 
         // on text area focus, generate identicon from IP address
         $(".textarea-wrapper > textarea", el).on("focus", function() {
-            if ($(".avatar svg", el).classList.contains("blank")) {
+            if ($(".avatar svg", el).getAttribute("className") === "blank") {
                 $(".avatar svg", el).replace(
                     lib.identicons.generate(lib.pbkdf2(api.remote_addr, api.salt, 1000, 6), 4, 48));
             }
diff --git a/isso/js/app/lib/identicons.js b/isso/js/app/lib/identicons.js
index 6507f09..161ef68 100644
--- a/isso/js/app/lib/identicons.js
+++ b/isso/js/app/lib/identicons.js
@@ -111,7 +111,7 @@ define(["q"], function(Q) {
         ].join(""), 2).toString(16);
 
         var el = generateIdenticon(blank, height, width);
-        el.classList.add("blank");
+        el.setAttribute("className", "blank"); // IE10 does not support classList on SVG elements, duh.
 
         return el;
     };