diff --git a/include/nlohmann/detail/meta/cpp_future.hpp b/include/nlohmann/detail/meta/cpp_future.hpp
index 30435ef67..147f2fa35 100644
--- a/include/nlohmann/detail/meta/cpp_future.hpp
+++ b/include/nlohmann/detail/meta/cpp_future.hpp
@@ -147,6 +147,8 @@ struct static_const
     static constexpr T value{};
 };
 
+template<typename T>
+constexpr T static_const<T>::value; // NOLINT(readability-redundant-declaration)
 
 }  // namespace detail
 }  // namespace nlohmann
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 1d66d6dd7..32dd5e1c6 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -3314,6 +3314,8 @@ struct static_const
     static constexpr T value{};
 };
 
+template<typename T>
+constexpr T static_const<T>::value; // NOLINT(readability-redundant-declaration)
 
 }  // namespace detail
 }  // namespace nlohmann