diff --git a/src/platform_windows.h b/src/platform_windows.h
index 4621721f..3c7be772 100644
--- a/src/platform_windows.h
+++ b/src/platform_windows.h
@@ -41,8 +41,6 @@
 #include <time.h>
 #include "timestamp.h"
 
-#define timezone _timezone
-
 // pEp files and directories
 
 #ifndef PER_USER_DIRECTORY