diff --git a/test/std/compile32.hxml b/test/std/compile32.hxml
index 12a7de5f7..2732affa3 100644
--- a/test/std/compile32.hxml
+++ b/test/std/compile32.hxml
@@ -3,3 +3,4 @@
 -D HXCPP_M32
 -D HXCPP_DEBUGGER
 -cp ../unit
+-lib hx4compat
diff --git a/test/std/compile64.hxml b/test/std/compile64.hxml
index 3dbe34387..2928668e5 100644
--- a/test/std/compile64.hxml
+++ b/test/std/compile64.hxml
@@ -2,3 +2,4 @@
 -cpp cpp64
 -D HXCPP_M64
 -cp ../unit
+-lib hx4compat