diff --git a/cangen.c b/cangen.c
index c51f24f..5f4a4fc 100644
--- a/cangen.c
+++ b/cangen.c
@@ -680,8 +680,8 @@ int main(int argc, char **argv)
 			return 1;
 		}
 
-		if (ifr.ifr_mtu != CANFD_MTU) {
-			printf("CAN interface is not CAN FD capable - sorry.\n");
+		if (ifr.ifr_mtu != CANFD_MTU && ifr.ifr_mtu != CANXL_MTU) {
+			printf("CAN interface is only Classical CAN capable - sorry.\n");
 			return 1;
 		}