diff --git a/CHANGELOG b/CHANGELOG
index c30a25c..8c74f9d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Make String#unescapeHTML strip tags in IE. Closes #10173. [kangax]
+
 * Stop form observers in unit tests. Closes #10938. [kangax]
 
 * Performance improvements for Enumerables. Closes #11264. [Ben, Samuel Lebeau]
diff --git a/src/string.js b/src/string.js
index 4074402..15791b7 100644
--- a/src/string.js
+++ b/src/string.js
@@ -211,7 +211,7 @@ if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.proto
     return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
   },
   unescapeHTML: function() {
-    return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
+    return this.stripTags().replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
   }
 });
 
diff --git a/test/unit/string.html b/test/unit/string.html
index 320c687..babb58c 100644
--- a/test/unit/string.html
+++ b/test/unit/string.html
@@ -287,6 +287,7 @@
       assertEqual(largeTextUnescaped, largeTextEscaped.unescapeHTML());
       
       assertEqual('1\n2', '1\n2'.unescapeHTML());
+      assertEqual('Pride & Prejudice', '<h1>Pride &amp; Prejudice</h1>'.unescapeHTML());
       
       benchmark(function(){
         largeTextEscaped.unescapeHTML();