diff --git a/include/nlohmann/detail/output/output_adapters.hpp b/include/nlohmann/detail/output/output_adapters.hpp
index 77fe7cc6..71ca65b9 100644
--- a/include/nlohmann/detail/output/output_adapters.hpp
+++ b/include/nlohmann/detail/output/output_adapters.hpp
@@ -97,6 +97,7 @@ class output_string_adapter : public output_adapter_protocol<CharType>
   private:
     StringType& str;
 };
+
 template<typename CharType, typename StringType = std::basic_string<CharType>>
 class output_adapter
 {
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index b8b1ba46..7a1aacb5 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -12208,6 +12208,7 @@ class output_string_adapter : public output_adapter_protocol<CharType>
   private:
     StringType& str;
 };
+
 template<typename CharType, typename StringType = std::basic_string<CharType>>
 class output_adapter
 {