diff --git a/include/crow/http_server.h b/include/crow/http_server.h
index 6aa070e46..548ea7a30 100644
--- a/include/crow/http_server.h
+++ b/include/crow/http_server.h
@@ -82,7 +82,7 @@ namespace crow
                                 auto last_time_t = time(0);
                                 tm my_tm;
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) or defined(__MINGW32__)
                                 gmtime_s(&my_tm, &last_time_t);
 #else
                                 gmtime_r(&last_time_t, &my_tm);
diff --git a/include/crow/logging.h b/include/crow/logging.h
index 9c8bfbbd3..db8f72f93 100644
--- a/include/crow/logging.h
+++ b/include/crow/logging.h
@@ -51,7 +51,7 @@ namespace crow
 
                 tm my_tm;
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) or defined(__MINGW32__)
                 gmtime_s(&my_tm, &t);
 #else
                 gmtime_r(&t, &my_tm);