Index: /trunk/src/VBox/Frontends/VirtualBox/src/settings/global/UIGlobalSettingsProxy.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/settings/global/UIGlobalSettingsProxy.cpp	(revision 72663)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/settings/global/UIGlobalSettingsProxy.cpp	(revision 72664)
@@ -21,4 +21,5 @@
 
 /* Qt includes: */
+# include <QButtonGroup>
 # include <QRegExpValidator>