Index: sources/canbus/MessageInterpreter.h
===================================================================
diff -u -rd9f8e4e8356bd081f84dc08c4d65d727c0ee707f -r0d59385f134f65a19dace1e2b46eb2631924396e
--- sources/canbus/MessageInterpreter.h	(.../MessageInterpreter.h)	(revision d9f8e4e8356bd081f84dc08c4d65d727c0ee707f)
+++ sources/canbus/MessageInterpreter.h	(.../MessageInterpreter.h)	(revision 0d59385f134f65a19dace1e2b46eb2631924396e)
@@ -24,6 +24,7 @@
 // forward declaration
 class tst_messaging;
 class tst_logging;
+class tst_canbus;
 
 namespace Can {
 
@@ -47,6 +48,7 @@
     // friend
     friend class ::tst_messaging;
     friend class ::tst_logging;
+    friend class ::tst_canbus;
 
     bool isType                         (const Message &vMessage, Gui::GuiActionType vType) const;
     bool isPayloadLenValid              (const Message &vMessage, Gui::GuiActionType vType) const;