diff --git a/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.cpp b/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.cpp
index 51fdcf78f7d..905738b8f1c 100644
--- a/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.cpp
+++ b/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.cpp
@@ -15,6 +15,8 @@
 
 namespace WebContent {
 
+JS_DEFINE_ALLOCATOR(ConsoleGlobalEnvironmentExtensions);
+
 ConsoleGlobalEnvironmentExtensions::ConsoleGlobalEnvironmentExtensions(JS::Realm& realm, Web::HTML::Window& window)
     : Object(realm, nullptr)
     , m_window_object(window)
diff --git a/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.h b/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.h
index 476000ad850..9a120af112d 100644
--- a/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.h
+++ b/Userland/Services/WebContent/ConsoleGlobalEnvironmentExtensions.h
@@ -15,6 +15,7 @@ namespace WebContent {
 
 class ConsoleGlobalEnvironmentExtensions final : public JS::Object {
     JS_OBJECT(ConsoleGlobalEnvironmentExtensions, JS::Object);
+    JS_DECLARE_ALLOCATOR(ConsoleGlobalEnvironmentExtensions);
 
 public:
     ConsoleGlobalEnvironmentExtensions(JS::Realm&, Web::HTML::Window&);
diff --git a/Userland/Services/WebContent/PageClient.cpp b/Userland/Services/WebContent/PageClient.cpp
index 7415a45a6c4..75b9ce87e2c 100644
--- a/Userland/Services/WebContent/PageClient.cpp
+++ b/Userland/Services/WebContent/PageClient.cpp
@@ -39,6 +39,8 @@ namespace WebContent {
 
 static bool s_use_gpu_painter = false;
 
+JS_DEFINE_ALLOCATOR(PageClient);
+
 void PageClient::set_use_gpu_painter()
 {
     s_use_gpu_painter = true;
diff --git a/Userland/Services/WebContent/PageClient.h b/Userland/Services/WebContent/PageClient.h
index b276d1abacd..45fe94e5bbb 100644
--- a/Userland/Services/WebContent/PageClient.h
+++ b/Userland/Services/WebContent/PageClient.h
@@ -24,6 +24,7 @@ namespace WebContent {
 
 class PageClient final : public Web::PageClient {
     JS_CELL(PageClient, Web::PageClient);
+    JS_DECLARE_ALLOCATOR(PageClient);
 
 public:
     static JS::NonnullGCPtr<PageClient> create(JS::VM& vm, PageHost& page_host, u64 id);
diff --git a/Userland/Services/WebWorker/PageHost.cpp b/Userland/Services/WebWorker/PageHost.cpp
index b5e6709938c..303a1b5f9a3 100644
--- a/Userland/Services/WebWorker/PageHost.cpp
+++ b/Userland/Services/WebWorker/PageHost.cpp
@@ -11,6 +11,8 @@
 
 namespace WebWorker {
 
+JS_DEFINE_ALLOCATOR(PageHost);
+
 JS::NonnullGCPtr<PageHost> PageHost::create(JS::VM& vm, ConnectionFromClient& client)
 {
     return vm.heap().allocate_without_realm<PageHost>(client);
diff --git a/Userland/Services/WebWorker/PageHost.h b/Userland/Services/WebWorker/PageHost.h
index dde2af3bd6b..6f85ddbaf91 100644
--- a/Userland/Services/WebWorker/PageHost.h
+++ b/Userland/Services/WebWorker/PageHost.h
@@ -15,6 +15,7 @@ namespace WebWorker {
 
 class PageHost final : public Web::PageClient {
     JS_CELL(PageHost, Web::PageClient);
+    JS_DECLARE_ALLOCATOR(PageHost);
 
 public:
     static JS::NonnullGCPtr<PageHost> create(JS::VM& vm, ConnectionFromClient& client);