diff --git a/scsh/cygwin32/sysdep.h b/scsh/cygwin32/sysdep.h
index 0aef871..3d683f2 100644
--- a/scsh/cygwin32/sysdep.h
+++ b/scsh/cygwin32/sysdep.h
@@ -1,6 +1,2 @@
-/* Cygwin seems to have TZNAME but they forgot to define it */
-#define HAVE_TZNAME
-#define tzname _tzname 
-
 /* Cygwin's adds _'s but making configure.in know about dlltool seemed evil */
 #define DLSYM_ADDS_USCORE