diff --git a/Vis/SoEvent/dict/SoEventDict.xml b/Vis/SoEvent/dict/SoEventDict.xml
index 5696d4f482c01202d547a3934c17a9a557917b89..035fe5f1f6446d76dacc855181db320d55cd6275 100755
--- a/Vis/SoEvent/dict/SoEventDict.xml
+++ b/Vis/SoEvent/dict/SoEventDict.xml
@@ -4,7 +4,6 @@
     <class pattern="SoEvent::CO<*>"/>
     <class name="std::vector< IPVolume * > "/>
 
-    <class pattern="std::_Rb_tree_*iterator<std::pair<const std::pair<int,unsigned int>,unsigned int> >"/>    
     <class name="std::pair<const std::pair<int,unsigned int>,unsigned int>"/>
 
     <class pattern="LinkedTo<*"/>
@@ -16,9 +15,7 @@
 
     <class name="std::vector<const LHCb::Measurement*         >" />    
     <class name="std::vector< IMaterialLocator::Intersections >" />    
-    <class name = "LHCb::MagneticFieldGrid" />
     <class name    = "MuonDAQHelper"        />
-    <class name    = "LHCb::FTRawCluster"/>
   </selection>
 
   <exclusion>