diff --git a/coord/init.hpp b/coord/init.hpp
index 04aa12a6..f442c3af 100644
--- a/coord/init.hpp
+++ b/coord/init.hpp
@@ -71,6 +71,18 @@ namespace util::coord {
             store<4,T,SelfT> ({ v0, v1, v2, v3 })
         { ; }
     };
+
+
+    //-------------------------------------------------------------------------
+    template <typename T, typename SelfT>
+    struct init<5,T,SelfT> : public store<5,T,SelfT>
+    {
+        using store<5,T,SelfT>::store;
+        constexpr init () = default;
+        constexpr init (T v0, T v1, T v2, T v3, T v4):
+            store<5,T,SelfT> ({ v0, v1, v2, v3, v4 })
+        { ; }
+    };
 }
 
 #endif
diff --git a/coord/store.hpp b/coord/store.hpp
index f877d1fa..ec64fe2a 100644
--- a/coord/store.hpp
+++ b/coord/store.hpp
@@ -108,6 +108,14 @@ DEFINE_STORE(vector, x, y, z, w)
 
 #undef DEFINE_STORE
 
+namespace util::coord {
+    template <size_t S, typename T, typename SelfT>
+    struct store {
+        T data[S];
+    };
+}
+
+
 #if 0
 template <typename T>
 struct util::coord::store<1,T,::util::extent<1,T>> {