diff --git a/branches/paradiseo-moeo-1.0/src/moeo b/branches/paradiseo-moeo-1.0/src/moeo
index 2a8a9f63c..f16e1a7eb 100644
--- a/branches/paradiseo-moeo-1.0/src/moeo
+++ b/branches/paradiseo-moeo-1.0/src/moeo
@@ -44,6 +44,7 @@
 #include <moeoNSGAII.h>
 #include <moeoObjectiveVector.h>
 #include <moeoObjectiveVectorComparator.h>
+#include <moeoObjectiveVectorTraits.h>
 #include <moeoRandomSelect.h>
 //#include <moeoReferencePointIndicatorBasedFitnessAssignment.h>
 #include <moeoReplacement.h>