diff --git a/include/Topology/generic/genericmap.hpp b/include/Topology/generic/genericmap.hpp
index 23c2dad5ab2de3abc89e0586528c7b033c08c5fb..995aa984dac37b019486760838548ae4564ef793 100644
--- a/include/Topology/generic/genericmap.hpp
+++ b/include/Topology/generic/genericmap.hpp
@@ -616,7 +616,7 @@ template <typename MAP, unsigned int ORBIT, unsigned int INCIDENT>
 unsigned int GenericMap::degree(Dart d)
 {
 	assert(ORBIT != INCIDENT || !"degree does not manage adjacency counting");
-	Traversor<MAP>* t = TraversorFactory<MAP>::createIncident(*this, d, dimension(), ORBIT, INCIDENT) ;
+	Traversor<MAP>* t = TraversorFactory<MAP>::createIncident(*(reinterpret_cast<MAP*>(this)), d, dimension(), ORBIT, INCIDENT) ;
 	FunctorCount fcount ;
 	t->applyFunctor(fcount) ;
 	return fcount.getNb() ;