--- databases/Vs/VsStaggeredField.C	2018-03-21 21:45:51.000000000 +0100
+++ databases/Vs/VsStaggeredField.C.new	2018-07-31 14:04:37.101494634 +0200
@@ -153,7 +153,7 @@
 template <class TYPE>
 std::valarray<int>
 VsStaggeredField<TYPE>::getOriDisplacements(size_t subBigIndex) const {
-  return (subBigIndex / this->twoPowSubRes) % 2;
+  return (subBigIndex / static_cast<TYPE>(this->twoPowSubRes)) % 2;
 }
 
 template <class TYPE>