diff --git a/http/logging.hpp b/http/logging.hpp
index 781bcfb..0ed4777 100644
--- a/http/logging.hpp
+++ b/http/logging.hpp
@@ -196,7 +196,8 @@
     filename = filename.substr(filename.rfind('/') + 1);
     std::cout << std::format("[{} {}:{}] ", levelString, filename,
                              format.loc.line())
-              << std::vformat(format.str, args) << std::endl;
+              << std::vformat(format.str, args) << '\n'
+              << std::flush;
 }
 } // namespace crow