1 files changed, 4 insertions, 0 deletions
diff --git a/include/ilist.h b/include/ilist.h
index 45c0bbf7d2c..265f0e2d57e 100644
--- a/include/ilist.h
+++ b/include/ilist.h
@@ -107,6 +107,10 @@ public:
     }
 
     reference operator*() noexcept { return *static_cast<pointer>(node_); }
+    const_reference operator*() const noexcept
+    {
+      return *static_cast<pointer>(node_);
+    }
     pointer operator->() noexcept { return static_cast<pointer>(node_); }
 
     friend bool operator==(const Iterator &lhs, const Iterator &rhs) noexcept