diff --git a/Meta/WPT.sh b/Meta/WPT.sh
index 63308fb624d..7a4997ac65e 100755
--- a/Meta/WPT.sh
+++ b/Meta/WPT.sh
@@ -11,8 +11,15 @@ WPT_REPOSITORY_URL=${WPT_REPOSITORY_URL:-"https://github.com/web-platform-tests/
 # shellcheck source=/dev/null
 . "${DIR}/shell_include.sh"
 
-LADYBIRD_BINARY=${LADYBIRD_BINARY:-"${LADYBIRD_SOURCE_DIR}/Build/ladybird/bin/Ladybird"}
-WEBDRIVER_BINARY=${WEBDRIVER_BINARY:-"${LADYBIRD_SOURCE_DIR}/Build/ladybird/bin/WebDriver"}
+default_binary_path() {
+    if [ "$(uname -s)" = "Darwin" ]; then
+        echo "${LADYBIRD_SOURCE_DIR}/Build/ladybird/bin/Ladybird.app/Contents/MacOS/"
+    else
+        echo "${LADYBIRD_SOURCE_DIR}/Build/ladybird/bin/"
+    fi
+}
+LADYBIRD_BINARY=${LADYBIRD_BINARY:-"$(default_binary_path)/Ladybird"}
+WEBDRIVER_BINARY=${WEBDRIVER_BINARY:-"$(default_binary_path)/WebDriver"}
 WPT_PROCESSES=${WPT_PROCESSES:-$(get_number_of_processing_units)}
 WPT_CERTIFICATES=(
   "tools/certs/cacert.pem"