diff --git a/libcron/include/libcron/CronSchedule.h b/libcron/include/libcron/CronSchedule.h
index 1c6fe97..9e71476 100644
--- a/libcron/include/libcron/CronSchedule.h
+++ b/libcron/include/libcron/CronSchedule.h
@@ -2,12 +2,12 @@
 
 #include "libcron/CronData.h"
 #include <chrono>
-#ifdef _WIN32
+#if defined(_MSC_VER)
 #pragma warning(push)
 #pragma warning(disable:4244)
 #endif
 #include <date/date.h>
-#ifdef _WIN32
+#if defined(_MSC_VER)
 #pragma warning(pop)
 #endif
 
@@ -51,4 +51,4 @@ namespace libcron
             CronData data;
     };
 
-}
\ No newline at end of file
+}