diff --git a/nixos/tests/wireguard/dynamic-refresh.nix b/nixos/tests/wireguard/dynamic-refresh.nix
index e0af6bc025aa..2a8fb0598833 100644
--- a/nixos/tests/wireguard/dynamic-refresh.nix
+++ b/nixos/tests/wireguard/dynamic-refresh.nix
@@ -84,7 +84,10 @@ import ../make-test-python.nix (
       ''
         start_all()
 
+        server.systemctl("start network-online.target")
         server.wait_for_unit("network-online.target")
+
+        client.systemctl("start network-online.target")
         client.wait_for_unit("network-online.target")
 
         client.succeed("ping -n -w 1 -c 1 10.23.42.1")
diff --git a/nixos/tests/wireguard/networkd.nix b/nixos/tests/wireguard/networkd.nix
index beaba5a4343a..17d164ff77f2 100644
--- a/nixos/tests/wireguard/networkd.nix
+++ b/nixos/tests/wireguard/networkd.nix
@@ -79,8 +79,11 @@ import ../make-test-python.nix (
     testScript = ''
       start_all()
 
-      peer0.wait_for_unit("systemd-networkd-wait-online.service")
-      peer1.wait_for_unit("systemd-networkd-wait-online.service")
+      peer0.systemctl("start network-online.target")
+      peer0.wait_for_unit("network-online.target")
+
+      peer1.systemctl("start network-online.target")
+      peer1.wait_for_unit("network-online.target")
 
       peer1.succeed("ping -c5 fc00::1")
       peer1.succeed("ping -c5 10.23.42.1")