diff --git a/src/buffer.c b/src/buffer.c
index 586b1f95..9ed8e881 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -1618,6 +1618,9 @@ open_archive (enum access_mode wanted_access)
       if (volume_label_option)
 	write_volume_label ();
       break;
+
+    default:
+      break;
     }
 }