Index: /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIMessageCenter.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIMessageCenter.cpp	(revision 58860)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIMessageCenter.cpp	(revision 58861)
@@ -2806,5 +2806,5 @@
         if (haveInterfaceID)
         {
-            QString s = info.interfaceID();
+            QString s = info.interfaceID().toString();
             if (!info.interfaceName().isEmpty())
                 s = info.interfaceName() + ' ' + s;
@@ -2815,5 +2815,5 @@
         if (!info.calleeIID().isNull() && info.calleeIID() != info.interfaceID())
         {
-            QString s = info.calleeIID();
+            QString s = info.calleeIID().toString();
             if (!info.calleeName().isEmpty())
                 s = info.calleeName() + ' ' + s;