diff --git a/include/wolfssl/user_settings.h b/include/wolfssl/user_settings.h
index c585ed4c..f63f0671 100755
--- a/include/wolfssl/user_settings.h
+++ b/include/wolfssl/user_settings.h
@@ -48,6 +48,7 @@
 #define FREERTOS
 #define WOLFSSL_TYPES
 #define NO_FILESYSTEM
+#define WOLFSSL_ALT_CERT_CHAINS
 
 #ifdef WOLFSSL_TYPES
     #ifndef byte
diff --git a/lib/libwolfssl.a b/lib/libwolfssl.a
index e025f845..66abcc81 100644
Binary files a/lib/libwolfssl.a and b/lib/libwolfssl.a differ