diff --git a/src/xrpld/core/detail/LRUMap.h b/src/xrpld/core/detail/LRUMap.h
index da731ca910..772ea36b8f 100644
--- a/src/xrpld/core/detail/LRUMap.h
+++ b/src/xrpld/core/detail/LRUMap.h
@@ -50,7 +50,7 @@ public:
             std::size_t excess = (data_.size() + 1) - capacity_;
             for (std::size_t i = 0; i < excess; ++i)
             {
-                Key const& lru = usage_list_.back();
+                auto lru = usage_list_.back();
                 usage_list_.pop_back();
                 data_.erase(lru);
             }