Index: sources/gui/GuiGlobals.cpp
===================================================================
diff -u -rf502bc55feb08cd037d9caa12086d30034fe715b -r8b044d8ef7db6f72c65aa6109d5f29a79bca92a2
--- sources/gui/GuiGlobals.cpp	(.../GuiGlobals.cpp)	(revision f502bc55feb08cd037d9caa12086d30034fe715b)
+++ sources/gui/GuiGlobals.cpp	(.../GuiGlobals.cpp)	(revision 8b044d8ef7db6f72c65aa6109d5f29a79bca92a2)
@@ -138,6 +138,8 @@
 
         qRegisterMetaType           <GuiRequestReasons  >("GuiRequestReasons");
 
+        qRegisterMetaType           <GuiStringIndexMap  >("GuiStringIndexMap");
+
         // Note that this Models are not used in the QML
         // but Qt needs them to be registered to be able to use them in between threads queue
         // by their metadata information.