diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pool.cpp b/reactos/drivers/wdm/audio/backpln/portcls/pool.cpp
index 53ef1ca3df4..98f8b733c1c 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pool.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pool.cpp
@@ -6,7 +6,7 @@
  * PROGRAMMER:      Johannes Anderwald
  */
 
-#include "private.h"
+#include "private.hpp"
 
 PVOID
 AllocateItem(