diff --git a/IDE/WIN10/user_settings.h b/IDE/WIN10/user_settings.h
index 826aa511b..0d2c832ee 100644
--- a/IDE/WIN10/user_settings.h
+++ b/IDE/WIN10/user_settings.h
@@ -99,6 +99,7 @@
         #define HAVE_FFDHE_6144
         #define HAVE_FFDHE_8192
         #define FP_MAX_BITS 16384
+        #define WOLFSSL_AES_OFB
     #endif /* FIPS v5 */
 #else
     /* Enables blinding mode, to prevent timing attacks */