diff --git a/local/list-unsafe-flat-objects.R b/local/list-unsafe-flat-objects.R
index 1937f99..60649a2 100644
--- a/local/list-unsafe-flat-objects.R
+++ b/local/list-unsafe-flat-objects.R
@@ -141,11 +141,13 @@ if (nrow(rows) == 0L) {
       call. = FALSE
     )
   }
+  # `count(*)` arrives as a double (or integer64), and `%d` rejects both, so the
+  # nothing-to-do path used to die on its own success message.
   message(sprintf(
-    "%s/%s: %d objects recorded, none unsafe. Nothing to repair.",
+    "%s/%s: %s objects recorded, none unsafe. Nothing to repair.",
     arch,
     codename,
-    total
+    format(as.numeric(total), scientific = FALSE)
   ))
   quit(status = 0)
 }