diff --git a/engine/core/dom/DOMTokenList.cpp b/engine/core/dom/DOMTokenList.cpp
index 001af3a2d4f..0fea487dd3e 100644
--- a/engine/core/dom/DOMTokenList.cpp
+++ b/engine/core/dom/DOMTokenList.cpp
@@ -83,6 +83,11 @@ void DOMTokenList::setValue(const AtomicString& value)
     m_element->setAttribute(HTMLNames::classAttr, value);
 }
 
+void DOMTokenList::clear()
+{
+    m_element->removeAttribute(HTMLNames::classAttr);
+}
+
 bool DOMTokenList::validateToken(const String& token, ExceptionState& exceptionState)
 {
     if (token.isEmpty()) {
diff --git a/engine/core/dom/DOMTokenList.h b/engine/core/dom/DOMTokenList.h
index 4d9dbb4139f..f73ef53b946 100644
--- a/engine/core/dom/DOMTokenList.h
+++ b/engine/core/dom/DOMTokenList.h
@@ -62,6 +62,7 @@ public:
     void remove(const AtomicString&, ExceptionState&);
     bool toggle(const AtomicString&, ExceptionState&);
     bool toggle(const AtomicString&, bool force, ExceptionState&);
+    void clear();
 
     const AtomicString& toString() const { return value(); }
 
diff --git a/engine/core/dom/DOMTokenList.idl b/engine/core/dom/DOMTokenList.idl
index 43ecc00d67c..3ca3d366978 100644
--- a/engine/core/dom/DOMTokenList.idl
+++ b/engine/core/dom/DOMTokenList.idl
@@ -32,6 +32,8 @@
     [RaisesException, CustomElementCallbacks] void remove(DOMString... tokens);
     [RaisesException, CustomElementCallbacks] boolean toggle(DOMString token, optional boolean force);
 
+    void clear();
+
     [NotEnumerable] stringifier;
 };
 
diff --git a/tests/lowlevel/classlist-expected.txt b/tests/lowlevel/classlist-expected.txt
index 523cc429d69..a924cfc8d83 100644
--- a/tests/lowlevel/classlist-expected.txt
+++ b/tests/lowlevel/classlist-expected.txt
@@ -1,12 +1,13 @@
-Running 8 tests
+Running 9 tests
 ok 1 Class list should add multiple classes
 ok 2 Class list should add classes in order
 ok 3 Class list should remove classes
 ok 4 Class list should remove multiple classes
-ok 5 Class list should check for classes
-ok 6 Class list should get classes by index
-ok 7 Class list should toggle classes
-ok 8 Class list should dynamically update style
-8 tests
-8 pass
+ok 5 Class list should clear all classes
+ok 6 Class list should check for classes
+ok 7 Class list should get classes by index
+ok 8 Class list should toggle classes
+ok 9 Class list should dynamically update style
+9 tests
+9 pass
 0 fail
diff --git a/tests/lowlevel/classlist.sky b/tests/lowlevel/classlist.sky
index 1622fa4ac17..853a817823e 100644
--- a/tests/lowlevel/classlist.sky
+++ b/tests/lowlevel/classlist.sky
@@ -48,6 +48,14 @@ describe("Class list", function() {
     assert.equal(target.classList.toString(), "second");
   });
 
+  it("should clear all classes", function() {
+    target.classList.add("first");
+    target.classList.add("second");
+    target.classList.clear();
+    assert.equal(target.classList.toString(), "");
+    assert.isFalse(target.hasAttribute("class"));
+  });
+
   it("should check for classes", function() {
     target.classList.add("first", "second", "third");
     assert.isTrue(target.classList.contains("first"));