diff --git a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
index 9073de1fd1b..4a0df4cc050 100644
--- a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
+++ b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
@@ -17,6 +17,8 @@
 #include <LibWeb/Bindings/AudioConstructor.h>
 #include <LibWeb/Bindings/CSSFontFaceRuleConstructor.h>
 #include <LibWeb/Bindings/CSSFontFaceRulePrototype.h>
+#include <LibWeb/Bindings/CSSGroupingRuleConstructor.h>
+#include <LibWeb/Bindings/CSSGroupingRulePrototype.h>
 #include <LibWeb/Bindings/CSSRuleConstructor.h>
 #include <LibWeb/Bindings/CSSRuleListConstructor.h>
 #include <LibWeb/Bindings/CSSRuleListPrototype.h>
@@ -358,6 +360,7 @@
     ADD_WINDOW_OBJECT_INTERFACE(AbstractRange)                                                      \
     ADD_WINDOW_OBJECT_INTERFACE(Crypto)                                                             \
     ADD_WINDOW_OBJECT_INTERFACE(CSSFontFaceRule)                                                    \
+    ADD_WINDOW_OBJECT_INTERFACE(CSSGroupingRule)                                                    \
     ADD_WINDOW_OBJECT_INTERFACE(CSSRule)                                                            \
     ADD_WINDOW_OBJECT_INTERFACE(CSSRuleList)                                                        \
     ADD_WINDOW_OBJECT_INTERFACE(CSSStyleDeclaration)                                                \
diff --git a/Userland/Libraries/LibWeb/CMakeLists.txt b/Userland/Libraries/LibWeb/CMakeLists.txt
index 2d7bd9e890c..cc04d4f56b7 100644
--- a/Userland/Libraries/LibWeb/CMakeLists.txt
+++ b/Userland/Libraries/LibWeb/CMakeLists.txt
@@ -452,6 +452,7 @@ endfunction()
 libweb_js_wrapper(Crypto/Crypto)
 libweb_js_wrapper(Crypto/SubtleCrypto)
 libweb_js_wrapper(CSS/CSSFontFaceRule)
+libweb_js_wrapper(CSS/CSSGroupingRule)
 libweb_js_wrapper(CSS/CSSRule)
 libweb_js_wrapper(CSS/CSSRuleList)
 libweb_js_wrapper(CSS/CSSStyleDeclaration)
diff --git a/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.h b/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.h
index 7161c7edaf8..4d28f42ee71 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.h
+++ b/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
+ * Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -19,10 +19,13 @@ class CSSGroupingRule : public CSSRule {
     AK_MAKE_NONMOVABLE(CSSGroupingRule);
 
 public:
-    ~CSSGroupingRule() = default;
+    using WrapperType = Bindings::CSSGroupingRuleWrapper;
+
+    virtual ~CSSGroupingRule() = default;
 
     CSSRuleList const& css_rules() const { return m_rules; }
     CSSRuleList& css_rules() { return m_rules; }
+    NonnullRefPtr<CSSRuleList> css_rules_for_bindings() { return m_rules; }
     size_t insert_rule(StringView rule, size_t index = 0);
     void delete_rule(size_t index);
 
diff --git a/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.idl b/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.idl
index 9d942b4407f..6f8280a0fd5 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.idl
+++ b/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.idl
@@ -1,8 +1,9 @@
 #import <CSS/CSSRule.idl>
 #import <CSS/CSSRuleList.idl>
 
+[Exposed=Window]
 interface CSSGroupingRule : CSSRule {
-    [SameObject] readonly attribute CSSRuleList cssRules;
+    [SameObject, ImplementedAs=css_rules_for_bindings] readonly attribute CSSRuleList cssRules;
     unsigned long insertRule(CSSOMString rule, optional unsigned long index = 0);
     undefined deleteRule(unsigned long index);
 };
diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index f6f4282747b..ed1019e9f94 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -35,6 +35,7 @@ class BorderStyleValue;
 class CalculatedStyleValue;
 class ColorStyleValue;
 class ContentStyleValue;
+class CSSGroupingRule;
 class CSSImportRule;
 class CSSFontFaceRule;
 class CSSMediaRule;
@@ -407,6 +408,7 @@ class CloseEventWrapper;
 class CommentWrapper;
 class CryptoWrapper;
 class CSSFontFaceRuleWrapper;
+class CSSGroupingRuleWrapper;
 class CSSRuleListWrapper;
 class CSSRuleWrapper;
 class CSSStyleDeclarationWrapper;