diff --git a/kmix/mixertoolbox.cpp b/kmix/mixertoolbox.cpp
index ecaf5f9d..71464f41 100644
--- a/kmix/mixertoolbox.cpp
+++ b/kmix/mixertoolbox.cpp
@@ -28,11 +28,12 @@
 
 #include "mixdevice.h"
 #include "mixer.h"
-
-#include "kmix-platforms.cpp"
+#include "mixer_backend.h"
 
 #include "mixertoolbox.h"
 
+typedef DevIterator* getDevIteratorFunc( );
+
 /***********************************************************************************
  Attention:
  This MixerToolBox is linked to the KMix Main Program, the KMix Applet and kmixctrl.