diff --git a/lib/qcd/action/fermion/CayleyFermion5D.h b/lib/qcd/action/fermion/CayleyFermion5D.h
index 1c7431bd..cce13e12 100644
--- a/lib/qcd/action/fermion/CayleyFermion5D.h
+++ b/lib/qcd/action/fermion/CayleyFermion5D.h
@@ -194,7 +194,9 @@ template void CayleyFermion5D< A >::M5Ddag(const FermionField &psi,const Fermion
 template void CayleyFermion5D< A >::MooeeInv    (const FermionField &psi, FermionField &chi); \
 template void CayleyFermion5D< A >::MooeeInvDag (const FermionField &psi, FermionField &chi);
 
-#define CAYLEY_DPERP_CACHE
+#undef  CAYLEY_DPERP_DENSE
+#define  CAYLEY_DPERP_CACHE
 #undef  CAYLEY_DPERP_LINALG
+#define CAYLEY_DPERP_VEC
 
 #endif