diff --git a/time-config.hpp b/time-config.hpp
index 0f08641..367380c 100644
--- a/time-config.hpp
+++ b/time-config.hpp
@@ -119,7 +119,7 @@
      *                      - Exception
      */
     template <typename T>
-    auto writeData(const char* fileName, const T&& data)
+    auto writeData(const char* fileName, T&& data)
     {
         std::ofstream file(fileName, std::ios::out);
         file << data;