diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.c b/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.c
index f9dbb686d1d..03fba0984ac 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.c
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pin_dmus.c
@@ -8,8 +8,6 @@
 
 #include "private.h"
 
-#include "private.h"
-
 typedef struct
 {
     IPortPinDMusVtbl *lpVtbl;
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.c b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.c
index 4a0c849af76..682334e401b 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.c
+++ b/reactos/drivers/wdm/audio/backpln/portcls/pin_wavepci.c
@@ -8,8 +8,6 @@
 
 #include "private.h"
 
-#include "private.h"
-
 typedef struct
 {
     IPortPinWavePciVtbl *lpVtbl;
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild b/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
index 8a8ce649de7..0032e58ff0d 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
+++ b/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
@@ -4,7 +4,7 @@
 	<importlibrary definition="portcls.spec" />
 	<define name="PC_NO_IMPORTS" />
 	<redefine name="_WIN32_WINNT">0x600</redefine>
-	<include base="portcls">../include</include>
+	<include base="portcls">.</include>
 	<library>ntoskrnl</library>
 	<library>ks</library>
 	<library>drmk</library>