diff --git a/src/details/default_err_handler.cpp b/src/details/default_err_handler.cpp
index cd4394b6c..fb91cf44b 100644
--- a/src/details/default_err_handler.cpp
+++ b/src/details/default_err_handler.cpp
@@ -12,7 +12,7 @@ namespace details {
 void default_err_handler::handle_ex(const std::string &origin, const source_loc &loc, const std::exception &ex) const {
     std::lock_guard lk{mutex_};
     const auto tm_time = os::localtime();
-    char date_buf[128];
+    char date_buf[64];
     std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
     std::string msg;
     if (loc.empty()) {