diff --git a/src/utils/Array.hpp b/src/utils/Array.hpp
index 497c0c5902d2f6c77925d2a756e8bec759f5b32b..410fce99af45005386d9cd5504992bd0815428fc 100644
--- a/src/utils/Array.hpp
+++ b/src/utils/Array.hpp
@@ -7,6 +7,9 @@
 template <typename DataType>
 class Array
 {
+ public:
+  using data_type = DataType;
+
  private:
   Kokkos::View<DataType*> m_values;