diff --git a/include/nlohmann/json.hpp b/include/nlohmann/json.hpp
index fe57b2766..4bbdc3f63 100644
--- a/include/nlohmann/json.hpp
+++ b/include/nlohmann/json.hpp
@@ -3420,7 +3420,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
     /// @sa https://json.nlohmann.me/api/basic_json/insert/
     iterator insert(const_iterator pos, basic_json&& val) // NOLINT(performance-unnecessary-value-param)
     {
-        return insert(pos, val);
+        return insert(std::move(pos), val);
     }
 
     /// @brief inserts copies of element into array
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 73c9d4ec2..77d29d3cb 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -24894,7 +24894,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
     /// @sa https://json.nlohmann.me/api/basic_json/insert/
     iterator insert(const_iterator pos, basic_json&& val) // NOLINT(performance-unnecessary-value-param)
     {
-        return insert(pos, val);
+        return insert(std::move(pos), val);
     }
 
     /// @brief inserts copies of element into array
diff --git a/tests/src/unit-custom-object-type.cpp b/tests/src/unit-custom-object-type.cpp
index c36dafff1..79b2ac6cc 100644
--- a/tests/src/unit-custom-object-type.cpp
+++ b/tests/src/unit-custom-object-type.cpp
@@ -37,7 +37,8 @@ struct no_key_compare_map : std::map<Key, T, Compare, Allocator>
     using base_t = std::map<Key, T, Compare, Allocator>;
     using base_t::base_t;
 
-    enum { key_compare }; // shadows base_t::key_compare, which is a type
+    // shadows base_t::key_compare, which is a type; never defined or called
+    void key_compare();
 };
 
 using no_key_compare_json = nlohmann::basic_json<no_key_compare_map>;