diff --git a/reactos/drivers/filesystems/npfs/create.c b/reactos/drivers/filesystems/npfs/create.c
index 8eab8357af9..1909aa4c2d7 100644
--- a/reactos/drivers/filesystems/npfs/create.c
+++ b/reactos/drivers/filesystems/npfs/create.c
@@ -532,7 +532,7 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
 	Ccb->PipeState = FILE_PIPE_LISTENING_STATE;
 	Ccb->OtherSide = NULL;
 
-	DPRINT("CCB: %x\n", Ccb);
+	DPRINT("CCB: %p\n", Ccb);
 
 	KeInitializeEvent(&Ccb->ConnectEvent, SynchronizationEvent, FALSE);
 	KeInitializeEvent(&Ccb->ReadEvent, SynchronizationEvent, FALSE);
@@ -718,7 +718,7 @@ NpfsClose(PDEVICE_OBJECT DeviceObject,
 		return STATUS_SUCCESS;
 	}
 
-	DPRINT("CCB %x\n", Ccb);
+	DPRINT("CCB %p\n", Ccb);
 	Fcb = Ccb->Fcb;
 
 	DPRINT("Closing pipe %wZ\n", &Fcb->PipeName);
diff --git a/reactos/drivers/filesystems/npfs/rw.c b/reactos/drivers/filesystems/npfs/rw.c
index ce0e0a0ac3a..e5793b5bab2 100644
--- a/reactos/drivers/filesystems/npfs/rw.c
+++ b/reactos/drivers/filesystems/npfs/rw.c
@@ -54,7 +54,7 @@ NpfsReadWriteCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
 	PNPFS_CCB Ccb;
 	BOOLEAN Complete = FALSE;
 
-	DPRINT("NpfsReadWriteCancelRoutine(DeviceObject %x, Irp %x)\n", DeviceObject, Irp);
+	DPRINT("NpfsReadWriteCancelRoutine(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
 
 	IoReleaseCancelSpinLock(Irp->CancelIrql);
 
diff --git a/reactos/drivers/filesystems/npfs/volume.c b/reactos/drivers/filesystems/npfs/volume.c
index 1952131e95a..7231d0db299 100644
--- a/reactos/drivers/filesystems/npfs/volume.c
+++ b/reactos/drivers/filesystems/npfs/volume.c
@@ -73,7 +73,7 @@ NpfsQueryVolumeInformation(PDEVICE_OBJECT DeviceObject,
 	ASSERT(DeviceObject != NULL);
 	ASSERT(Irp != NULL);
 
-	DPRINT("NpfsQueryVolumeInformation(DeviceObject %x, Irp %x)\n",
+	DPRINT("NpfsQueryVolumeInformation(DeviceObject %p, Irp %p)\n",
 		DeviceObject,
 		Irp);
 
@@ -83,7 +83,7 @@ NpfsQueryVolumeInformation(PDEVICE_OBJECT DeviceObject,
 	SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
 
 	DPRINT("FsInformationClass %d\n", FsInformationClass);
-	DPRINT("SystemBuffer %x\n", SystemBuffer);
+	DPRINT("SystemBuffer %p\n", SystemBuffer);
 
 	switch (FsInformationClass)
 	{