diff --git a/Grid/qcd/action/fermion/WilsonCloverTypes.h b/Grid/qcd/action/fermion/WilsonCloverTypes.h
index a5a95d93..5ce3b91b 100644
--- a/Grid/qcd/action/fermion/WilsonCloverTypes.h
+++ b/Grid/qcd/action/fermion/WilsonCloverTypes.h
@@ -47,8 +47,6 @@ class CompactWilsonCloverTypes {
 public:
   INHERIT_IMPL_TYPES(Impl);
 
-  static_assert(Nd == 4 && Nc == 3 && Ns == 4 && Impl::Dimension == 3, "Wrong dimensions");
-
   static constexpr int Nred      = Nc * Nhs;        // 6
   static constexpr int Nblock    = Nhs;             // 2
   static constexpr int Ndiagonal = Nred;            // 6
diff --git a/Grid/qcd/action/fermion/implementation/CompactWilsonCloverFermionImplementation.h b/Grid/qcd/action/fermion/implementation/CompactWilsonCloverFermionImplementation.h
index 2496f3f1..e4864730 100644
--- a/Grid/qcd/action/fermion/implementation/CompactWilsonCloverFermionImplementation.h
+++ b/Grid/qcd/action/fermion/implementation/CompactWilsonCloverFermionImplementation.h
@@ -59,6 +59,8 @@ CompactWilsonCloverFermion<Impl, CloverHelpers>::CompactWilsonCloverFermion(Gaug
   , BoundaryMask(&Fgrid)
   , BoundaryMaskEven(&Hgrid), BoundaryMaskOdd(&Hgrid)
 {
+  assert(Nd == 4 && Nc == 3 && Ns == 4 && Impl::Dimension == 3);
+
   csw_r *= 0.5;
   csw_t *= 0.5;
   if (clover_anisotropy.isAnisotropic)