diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index e7541d5..77d3aab 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -341,7 +341,8 @@
 			}
 			break;
 		case '?':
-			if (proto_version != p9_proto_2000u)
+			if ((proto_version != p9_proto_2000u) &&
+				(proto_version != p9_proto_2000L))
 				return 0;
 			break;
 		default:
@@ -488,7 +489,8 @@
 			}
 			break;
 		case '?':
-			if (proto_version != p9_proto_2000u)
+			if ((proto_version != p9_proto_2000u) &&
+				(proto_version != p9_proto_2000L))
 				return 0;
 			break;
 		default: