Index: /trunk/BNC/src/bncmain.cpp
===================================================================
--- /trunk/BNC/src/bncmain.cpp	(revision 6547)
+++ /trunk/BNC/src/bncmain.cpp	(revision 6548)
@@ -114,4 +114,13 @@
 #endif
 
+#ifdef Q_OS_MACX
+    if ( QSysInfo::MacintoshVersion > QSysInfo::MV_10_8 )
+    {
+        // fix Mac OS X 10.9 (mavericks) font issue
+        // https://bugreports.qt-project.org/browse/QTBUG-32789
+        QFont::insertSubstitution(".Lucida Grande UI", "Lucida Grande");
+    }
+#endif
+
   bool GUIenabled = interactive || displaySet;
   t_app app(argc, argv, GUIenabled);