diff --git a/nixos/tests/prometheus-exporters.nix b/nixos/tests/prometheus-exporters.nix
index 8b40d7e41c00..1815ac6c6a9f 100644
--- a/nixos/tests/prometheus-exporters.nix
+++ b/nixos/tests/prometheus-exporters.nix
@@ -1244,10 +1244,8 @@ let
       exporterConfig.enable = true;
       exporterConfig.controllers = [{ }];
       exporterTest = ''
-        wait_for_unit("prometheus-unpoller-exporter.service")
-        wait_for_open_port(9130)
-        succeed(
-            "curl -sSf localhost:9130/metrics | grep 'unpoller_build_info{.\\+} 1'"
+        wait_until_succeeds(
+            'journalctl -eu prometheus-unpoller-exporter.service -o cat | grep "Connection Error"'
         )
       '';
     };