diff --git a/reactos/drivers/wdm/audio/backpln/portcls/filter_wavecyclic.cpp b/reactos/drivers/wdm/audio/backpln/portcls/filter_wavecyclic.cpp
index 71a61a6a6f1..fe0232d7674 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/filter_wavecyclic.cpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/filter_wavecyclic.cpp
@@ -143,10 +143,10 @@ CPortFilterWaveCyclic::DeviceIoControl(
     {
         DPRINT("Unhandled function %lx Length %x\n", IoStack->Parameters.DeviceIoControl.IoControlCode, IoStack->Parameters.DeviceIoControl.InputBufferLength);
         
-        Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
+        Irp->IoStatus.Status = STATUS_NOT_FOUND;
 
         IoCompleteRequest(Irp, IO_NO_INCREMENT);
-        return STATUS_SUCCESS;
+        return STATUS_NOT_FOUND;
     }
 
     Status = PcHandlePropertyWithTable(Irp, m_Descriptor->FilterPropertySetCount, m_Descriptor->FilterPropertySet, m_Descriptor);