diff --git a/IDE/WIN/user_settings.h b/IDE/WIN/user_settings.h
index 4006bbfff..d13c2d98c 100755
--- a/IDE/WIN/user_settings.h
+++ b/IDE/WIN/user_settings.h
@@ -46,6 +46,7 @@
 
         #define HAVE_ECC
         #define ECC_SHAMIR
+        #define ECC_TIMING_RESISTANT
     #else
         /* The servers and clients */
         #define OPENSSL_EXTRA