diff --git a/UI/AppKit/Interface/LadybirdWebViewBridge.cpp b/UI/AppKit/Interface/LadybirdWebViewBridge.cpp
index 67bb7887c12..515414f8342 100644
--- a/UI/AppKit/Interface/LadybirdWebViewBridge.cpp
+++ b/UI/AppKit/Interface/LadybirdWebViewBridge.cpp
@@ -147,7 +147,7 @@ void WebViewBridge::initialize_client(CreateNewClient create_new_client)
     }
 }
 
-void WebViewBridge::initialize_client_as_child(WebViewBridge const& parent, u64 page_index)
+void WebViewBridge::initialize_client_as_child(WebViewBridge& parent, u64 page_index)
 {
     m_client_state.client = parent.client();
     m_client_state.page_index = page_index;
diff --git a/UI/AppKit/Interface/LadybirdWebViewBridge.h b/UI/AppKit/Interface/LadybirdWebViewBridge.h
index 64a7a287506..dd27d961104 100644
--- a/UI/AppKit/Interface/LadybirdWebViewBridge.h
+++ b/UI/AppKit/Interface/LadybirdWebViewBridge.h
@@ -24,7 +24,7 @@ public:
     virtual ~WebViewBridge() override;
 
     virtual void initialize_client(CreateNewClient = CreateNewClient::Yes) override;
-    void initialize_client_as_child(WebViewBridge const& parent, u64 page_index);
+    void initialize_client_as_child(WebViewBridge& parent, u64 page_index);
 
     float device_pixel_ratio() const { return m_device_pixel_ratio; }
     void set_device_pixel_ratio(float device_pixel_ratio);
diff --git a/UI/Headless/Application.cpp b/UI/Headless/Application.cpp
index 9a376ac0fc8..11f4e31ea47 100644
--- a/UI/Headless/Application.cpp
+++ b/UI/Headless/Application.cpp
@@ -110,7 +110,7 @@ HeadlessWebView& Application::create_web_view(Core::AnonymousBuffer theme, Web::
     return *m_web_views.last();
 }
 
-HeadlessWebView& Application::create_child_web_view(HeadlessWebView const& parent, u64 page_index)
+HeadlessWebView& Application::create_child_web_view(HeadlessWebView& parent, u64 page_index)
 {
     auto web_view = HeadlessWebView::create_child(parent, page_index);
     m_web_views.append(move(web_view));
diff --git a/UI/Headless/Application.h b/UI/Headless/Application.h
index 51745f8af78..83babf8cc9a 100644
--- a/UI/Headless/Application.h
+++ b/UI/Headless/Application.h
@@ -34,7 +34,7 @@ public:
     ErrorOr<void> launch_test_fixtures();
 
     HeadlessWebView& create_web_view(Core::AnonymousBuffer theme, Web::DevicePixelSize window_size);
-    HeadlessWebView& create_child_web_view(HeadlessWebView const&, u64 page_index);
+    HeadlessWebView& create_child_web_view(HeadlessWebView&, u64 page_index);
     void destroy_web_views();
 
     template<typename Callback>
diff --git a/UI/Headless/HeadlessWebView.cpp b/UI/Headless/HeadlessWebView.cpp
index bd4dcc4d95b..b25fe17c110 100644
--- a/UI/Headless/HeadlessWebView.cpp
+++ b/UI/Headless/HeadlessWebView.cpp
@@ -138,7 +138,7 @@ NonnullOwnPtr<HeadlessWebView> HeadlessWebView::create(Core::AnonymousBuffer the
     return view;
 }
 
-NonnullOwnPtr<HeadlessWebView> HeadlessWebView::create_child(HeadlessWebView const& parent, u64 page_index)
+NonnullOwnPtr<HeadlessWebView> HeadlessWebView::create_child(HeadlessWebView& parent, u64 page_index)
 {
     auto view = adopt_own(*new HeadlessWebView(parent.m_theme, parent.m_viewport_size));
 
diff --git a/UI/Headless/HeadlessWebView.h b/UI/Headless/HeadlessWebView.h
index 4a8127de901..d0f45731601 100644
--- a/UI/Headless/HeadlessWebView.h
+++ b/UI/Headless/HeadlessWebView.h
@@ -21,7 +21,7 @@ namespace Ladybird {
 class HeadlessWebView final : public WebView::ViewImplementation {
 public:
     static NonnullOwnPtr<HeadlessWebView> create(Core::AnonymousBuffer theme, Web::DevicePixelSize window_size);
-    static NonnullOwnPtr<HeadlessWebView> create_child(HeadlessWebView const&, u64 page_index);
+    static NonnullOwnPtr<HeadlessWebView> create_child(HeadlessWebView&, u64 page_index);
 
     void clear_content_filters();