diff --git a/browser/base/content/aboutNetError.xhtml b/browser/base/content/aboutNetError.xhtml
index a8e3e9601cdf..e9937976e7ef 100644
--- a/browser/base/content/aboutNetError.xhtml
+++ b/browser/base/content/aboutNetError.xhtml
@@ -241,7 +241,7 @@
         var sd = document.getElementById("errorShortDescText");
         if (sd) {
           if (gIsCertError) {
-            sd.textContent = document.getElementById("ed_nssBadCert").textContent;
+            sd.innerHTML = document.getElementById("ed_nssBadCert").innerHTML;
           }
           else {
             sd.textContent = getDescription();