diff --git a/reactos/drivers/lib/csq/csq.xml b/reactos/drivers/lib/csq/csq.xml
index 98d10925d1b..3b64ebc3a4d 100644
--- a/reactos/drivers/lib/csq/csq.xml
+++ b/reactos/drivers/lib/csq/csq.xml
@@ -1,4 +1,5 @@
 <module name="csq" type="staticlibrary">
 	<define name="__USE_W32API"/>
+	<define name="_NTOSKRNL_"/>
 	<file>csq.c</file>
 </module>