diff --git a/platform/win32/contiki-conf.h b/platform/win32/contiki-conf.h
index 1e0eb68e0..9344c26b7 100644
--- a/platform/win32/contiki-conf.h
+++ b/platform/win32/contiki-conf.h
@@ -135,7 +135,9 @@ typedef unsigned short uip_stats_t;
 
 #define EMAIL_CONF_WIDTH  76
 #define EMAIL_CONF_HEIGHT 30
-
+#ifndef PLATFORM_BUILD
+#define EMAIL_CONF_ERASE   0
+#endif
 
 #define IRC_CONF_WIDTH         78
 #define IRC_CONF_HEIGHT        30