diff --git a/endian.hpp b/endian.hpp
index c16ba65b..e9f260fb 100644
--- a/endian.hpp
+++ b/endian.hpp
@@ -171,6 +171,11 @@ namespace cruft {
              static T convert (T t) { return ltob (t); }
         };
 
+        template <scheme SchemeV> struct converter<SchemeV, SchemeV> {
+            template <typename T>
+            static T convert (T t) { return t; }
+        };
+
         template <scheme DstV, scheme SrcV, typename T>
         T convert (T t)
         {