diff --git a/include/jwt-cpp/jwt.h b/include/jwt-cpp/jwt.h
index a3d369634..25e1440dd 100644
--- a/include/jwt-cpp/jwt.h
+++ b/include/jwt-cpp/jwt.h
@@ -494,44 +494,41 @@ namespace jwt {
 #endif
 		};
 
-		namespace details {
-			inline std::unique_ptr<BIO, decltype(&BIO_free_all)> make_mem_buf_bio() {
-				return std::unique_ptr<BIO, decltype(&BIO_free_all)>(BIO_new(BIO_s_mem()), BIO_free_all);
-			}
+		inline std::unique_ptr<BIO, decltype(&BIO_free_all)> make_mem_buf_bio() {
+			return std::unique_ptr<BIO, decltype(&BIO_free_all)>(BIO_new(BIO_s_mem()), BIO_free_all);
+		}
 
-			inline std::unique_ptr<BIO, decltype(&BIO_free_all)> make_mem_buf_bio(const std::string& data) {
-				return std::unique_ptr<BIO, decltype(&BIO_free_all)>(
+		inline std::unique_ptr<BIO, decltype(&BIO_free_all)> make_mem_buf_bio(const std::string& data) {
+			return std::unique_ptr<BIO, decltype(&BIO_free_all)>(
 #if OPENSSL_VERSION_NUMBER <= 0x10100003L
-					BIO_new_mem_buf(const_cast<char*>(data.data()), static_cast<int>(data.size())), BIO_free_all
+				BIO_new_mem_buf(const_cast<char*>(data.data()), static_cast<int>(data.size())), BIO_free_all
 #else
-					BIO_new_mem_buf(data.data(), static_cast<int>(data.size())), BIO_free_all
+				BIO_new_mem_buf(data.data(), static_cast<int>(data.size())), BIO_free_all
 #endif
-				);
-			}
+			);
+		}
 
-			template<typename error_category = error::rsa_error>
-			std::string write_bio_to_string(std::unique_ptr<BIO, decltype(&BIO_free_all)>& bio_out,
-											std::error_code& ec) {
-				char* ptr = nullptr;
-				auto len = BIO_get_mem_data(bio_out.get(), &ptr);
-				if (len <= 0 || ptr == nullptr) {
-					ec = error_category::convert_to_pem_failed;
-					return {};
-				}
-				return {ptr, static_cast<size_t>(len)};
+		template<typename error_category = error::rsa_error>
+		std::string write_bio_to_string(std::unique_ptr<BIO, decltype(&BIO_free_all)>& bio_out, std::error_code& ec) {
+			char* ptr = nullptr;
+			auto len = BIO_get_mem_data(bio_out.get(), &ptr);
+			if (len <= 0 || ptr == nullptr) {
+				ec = error_category::convert_to_pem_failed;
+				return {};
 			}
+			return {ptr, static_cast<size_t>(len)};
+		}
 
-			inline std::unique_ptr<EVP_MD_CTX, void (*)(EVP_MD_CTX*)> make_evp_md_ctx() {
-				return
+		inline std::unique_ptr<EVP_MD_CTX, void (*)(EVP_MD_CTX*)> make_evp_md_ctx() {
+			return
 #ifdef JWT_OPENSSL_1_0_0
-					std::unique_ptr<EVP_MD_CTX, decltype(&EVP_MD_CTX_destroy)>(EVP_MD_CTX_create(),
-																			   &EVP_MD_CTX_destroy);
+				std::unique_ptr<EVP_MD_CTX, decltype(&EVP_MD_CTX_destroy)>(EVP_MD_CTX_create(), &EVP_MD_CTX_destroy);
 #else
-					std::unique_ptr<EVP_MD_CTX, decltype(&EVP_MD_CTX_free)>(EVP_MD_CTX_new(), &EVP_MD_CTX_free);
+				std::unique_ptr<EVP_MD_CTX, decltype(&EVP_MD_CTX_free)>(EVP_MD_CTX_new(), &EVP_MD_CTX_free);
 #endif
-			}
+		}
 
-			/**
+		/**
 		 * \brief Extract the public key of a pem certificate
 		 *
 		 * \tparam error_category	jwt::error enum category to match with the keys being used