diff --git a/nixos/tests/prometheus/pushgateway.nix b/nixos/tests/prometheus/pushgateway.nix
index 6b13447085d9..8bd78a2c3aad 100644
--- a/nixos/tests/prometheus/pushgateway.nix
+++ b/nixos/tests/prometheus/pushgateway.nix
@@ -56,6 +56,9 @@
       + "jq '.data.result[0].metric.version' | grep '\"${pkgs.prometheus-pushgateway.version}\"'"
     )
 
+    client.systemctl("start network-online.target")
+    client.wait_for_unit("network-online.target")
+
     # Add a metric and check in Prometheus
     client.wait_until_succeeds(
       "echo 'some_metric 3.14' | curl --data-binary @- http://pushgateway:9091/metrics/job/some_job"