diff --git a/nixos/tests/tinydns.nix b/nixos/tests/tinydns.nix
index 3e3b682f2b91..124508bc004b 100644
--- a/nixos/tests/tinydns.nix
+++ b/nixos/tests/tinydns.nix
@@ -31,7 +31,7 @@ import ./make-test-python.nix ({ lib, ...} : {
     # it fails on the 10th iteration.
     nameserver.succeed(
         """
-          for i in {1..15}; do
+          for i in {1..100}; do
             host bla.foo.bar 192.168.1.1 | grep '1\.2\.3\.4'
           done
         """