1 files changed, 2 insertions, 0 deletions
diff --git a/include/value.h b/include/value.h
index 2a9ecc0d1a..d55acf3c80 100644
--- a/include/value.h
+++ b/include/value.h
@@ -42,6 +42,8 @@ class tag_list;
 class value
 {
 public:
+    explicit value() {}
+
     //Movable but not (implicitly) copyable
     value(const value&) = delete;
     value(value&&) = default;