diff --git a/ssl/t1_lib.cc b/ssl/t1_lib.cc
index cc29a83..e5a33dd 100644
--- a/ssl/t1_lib.cc
+++ b/ssl/t1_lib.cc
@@ -200,7 +200,7 @@
 }
 
 static bool is_post_quantum_group(uint16_t id) {
-  return id == SSL_CURVE_CECPQ2 || id == SSL_CURVE_CECPQ2b;
+  return id == SSL_CURVE_CECPQ2;
 }
 
 bool ssl_client_hello_init(const SSL *ssl, SSL_CLIENT_HELLO *out,