diff --git a/Ladybird/Headless/Application.cpp b/Ladybird/Headless/Application.cpp
index cb89647a2fd..bd63c3f6122 100644
--- a/Ladybird/Headless/Application.cpp
+++ b/Ladybird/Headless/Application.cpp
@@ -47,6 +47,9 @@ void Application::create_platform_options(WebView::ChromeOptions& chrome_options
     if (is_layout_test_mode) {
         // Allow window.open() to succeed for tests.
         chrome_options.allow_popups = WebView::AllowPopups::Yes;
+
+        // Ensure consistent font rendering between operating systems.
+        web_content_options.force_fontconfig = WebView::ForceFontconfig::Yes;
     }
 
     if (dump_gc_graph) {
diff --git a/Ladybird/Headless/CMakeLists.txt b/Ladybird/Headless/CMakeLists.txt
index 14b28d233ec..cf914cdb53c 100644
--- a/Ladybird/Headless/CMakeLists.txt
+++ b/Ladybird/Headless/CMakeLists.txt
@@ -14,6 +14,6 @@ target_link_libraries(headless-browser PRIVATE ${LADYBIRD_LIBS} LibDiff)
 if (BUILD_TESTING)
     add_test(
         NAME LibWeb
-        COMMAND $<TARGET_FILE:headless-browser> --run-tests ${LADYBIRD_SOURCE_DIR}/Tests/LibWeb --dump-failed-ref-tests --force-fontconfig
+        COMMAND $<TARGET_FILE:headless-browser> --run-tests ${LADYBIRD_SOURCE_DIR}/Tests/LibWeb --dump-failed-ref-tests
     )
 endif()