diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 1666df1..e294fb2 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -2150,7 +2150,7 @@
 			/* Extension consists of a responder_id_list and
 			 * request_extensions. */
 			if (!CBS_get_u16_length_prefixed(&extension, &responder_id_list) ||
-				CBS_get_u16_length_prefixed(&extension, &request_extensions) ||
+				!CBS_get_u16_length_prefixed(&extension, &request_extensions) ||
 				CBS_len(&extension) != 0)
 				{
 				*out_alert = SSL_AD_DECODE_ERROR;