diff --git a/mpl/rma.hpp b/mpl/rma.hpp
index 0338930..bae7ee1 100644
--- a/mpl/rma.hpp
+++ b/mpl/rma.hpp
@@ -258,6 +258,11 @@ namespace mpl
             
     };
 
+    #ifdef KOKKOS_ENABLED
+
+    #include <Kokkos_Core.hpp>
+    #include <kokkos.hpp>
+
     template <class T, class U>
     class External
     {
@@ -506,4 +511,6 @@ namespace mpl
         MPI_Win_unlock_all(&win)
     }
 
+    #endif
+
 }