diff --git a/nixos/tests/prometheus-exporters.nix b/nixos/tests/prometheus-exporters.nix
index bb87f1a3df9b..319bf2dea323 100644
--- a/nixos/tests/prometheus-exporters.nix
+++ b/nixos/tests/prometheus-exporters.nix
@@ -1198,13 +1198,15 @@ let
         wait_for_unit("prometheus-statsd-exporter.service")
         wait_for_open_port(9102)
         succeed("curl http://localhost:9102/metrics | grep 'statsd_exporter_build_info{'")
-        succeed(
-          "echo 'test.udp:1|c' > /dev/udp/localhost/9125",
-          "curl http://localhost:9102/metrics | grep 'test_udp 1'",
+        wait_until_succeeds(
+          "echo 'test.udp:1|c' > /dev/udp/localhost/9125 && \
+          curl http://localhost:9102/metrics | grep 'test_udp 1'",
+          timeout=10
         )
-        succeed(
-          "echo 'test.tcp:1|c' > /dev/tcp/localhost/9125",
-          "curl http://localhost:9102/metrics | grep 'test_tcp 1'",
+        wait_until_succeeds(
+          "echo 'test.tcp:1|c' > /dev/tcp/localhost/9125 && \
+          curl http://localhost:9102/metrics | grep 'test_tcp 1'",
+          timeout=10
         )
       '';
     };