diff --git a/repos/demo/include/util/lazy_value.h b/repos/demo/include/util/lazy_value.h
index b407571d8..7eb9c55d0 100644
--- a/repos/demo/include/util/lazy_value.h
+++ b/repos/demo/include/util/lazy_value.h
@@ -46,7 +46,7 @@ class Lazy_value
 				_accel = 1;
 		}
 
-		T dst() { return _dst; }
+		T dst() const { return _dst; }
 
 		void assign(T value) { _curr = value; }