diff --git a/win32ss/printing/base/marshalling.c b/win32ss/printing/base/marshalling.c
index 3a7ac9e2704..8388a0af648 100644
--- a/win32ss/printing/base/marshalling.c
+++ b/win32ss/printing/base/marshalling.c
@@ -9,6 +9,8 @@
 #include <windef.h>
 #include <winbase.h>
 
+#include <marshalling/marshalling.h>
+
 /**
  * @name MarshallDownStructure
  *