diff --git a/src/Mayaqua/Network.h b/src/Mayaqua/Network.h
index d6a0f29f..720a0770 100644
--- a/src/Mayaqua/Network.h
+++ b/src/Mayaqua/Network.h
@@ -59,7 +59,7 @@ struct DYN_VALUE
 
 #define	DEFAULT_CIPHER_LIST			"ECDHE+AESGCM:ECDHE+CHACHA20:DHE+AESGCM:DHE+CHACHA20:ECDHE+AES256:DHE+AES256:RSA+AES"
 
-#define PQ_GROUP_LIST				"?p521_kyber1024:?x25519_kyber768:P-512:X25519:P-256"
+#define PQ_GROUP_LIST				"p521_kyber1024:x25519_kyber768:P-521:X25519:P-256"
 
 // SSL logging function
 //#define	ENABLE_SSL_LOGGING