diff --git a/Ladybird/CMakeLists.txt b/Ladybird/CMakeLists.txt
index 6b04edca06..7258d7d06b 100644
--- a/Ladybird/CMakeLists.txt
+++ b/Ladybird/CMakeLists.txt
@@ -269,4 +269,9 @@ if (BUILD_TESTING)
         ENVIRONMENT QT_QPA_PLATFORM=offscreen
         ENVIRONMENT "SERENITY_SOURCE_DIR=${SERENITY_SOURCE_DIR}"
     )
+    if (APPLE)
+        set_tests_properties(LibWeb WPT PROPERTIES
+            ENVIRONMENT "WEBDRIVER_BINARY=$<TARGET_FILE_DIR:ladybird>/$<TARGET_FILE_NAME:WebDriver>"
+        )
+    endif()
 endif()
diff --git a/Tests/LibWeb/WPT/run.sh b/Tests/LibWeb/WPT/run.sh
index a01eb4e377..c2e8377e37 100755
--- a/Tests/LibWeb/WPT/run.sh
+++ b/Tests/LibWeb/WPT/run.sh
@@ -11,8 +11,8 @@ then
 fi
 
 
-WEBDRIVER_BINARY=$(env PATH="${SERENITY_SOURCE_DIR}/Build/lagom/bin:${SERENITY_SOURCE_DIR}/Meta/Lagom/Build/bin:${PATH}" \
-                   which WebDriver)
+: "${WEBDRIVER_BINARY:=$(env PATH="${SERENITY_SOURCE_DIR}/Build/lagom/bin:${SERENITY_SOURCE_DIR}/Meta/Lagom/Build/bin:${PATH}" \
+                         which WebDriver)}"
 update_expectations_metadata=false
 
 for arg in "$@"; do