diff --git a/nixos/tests/discourse.nix b/nixos/tests/discourse.nix
index 35ca083c6c4e..c79ba41c2eb9 100644
--- a/nixos/tests/discourse.nix
+++ b/nixos/tests/discourse.nix
@@ -40,7 +40,7 @@ import ./make-test-python.nix (
 
         networking.extraHosts = ''
           127.0.0.1 ${discourseDomain}
-          ${nodes.client.config.networking.primaryIPAddress} ${clientDomain}
+          ${nodes.client.networking.primaryIPAddress} ${clientDomain}
         '';
 
         services.postfix = {
@@ -90,7 +90,7 @@ import ./make-test-python.nix (
 
         networking.extraHosts = ''
           127.0.0.1 ${clientDomain}
-          ${nodes.discourse.config.networking.primaryIPAddress} ${discourseDomain}
+          ${nodes.discourse.networking.primaryIPAddress} ${discourseDomain}
         '';
 
         services.dovecot2 = {
@@ -178,8 +178,8 @@ import ./make-test-python.nix (
         discourse.wait_until_succeeds("curl -sS -f https://${discourseDomain}")
         discourse.succeed(
             "curl -sS -f https://${discourseDomain}/session/csrf -c cookie -b cookie -H 'Accept: application/json' | jq -r '\"X-CSRF-Token: \" + .csrf' > csrf_token",
-            "curl -sS -f https://${discourseDomain}/session -c cookie -b cookie -H @csrf_token -H 'Accept: application/json' -d 'login=${nodes.discourse.config.services.discourse.admin.username}' -d \"password=${adminPassword}\" | jq -e '.user.username == \"${nodes.discourse.config.services.discourse.admin.username}\"'",
-            "curl -sS -f https://${discourseDomain}/login -v -H 'Accept: application/json' -c cookie -b cookie 2>&1 | grep ${nodes.discourse.config.services.discourse.admin.username}",
+            "curl -sS -f https://${discourseDomain}/session -c cookie -b cookie -H @csrf_token -H 'Accept: application/json' -d 'login=${nodes.discourse.services.discourse.admin.username}' -d \"password=${adminPassword}\" | jq -e '.user.username == \"${nodes.discourse.services.discourse.admin.username}\"'",
+            "curl -sS -f https://${discourseDomain}/login -v -H 'Accept: application/json' -c cookie -b cookie 2>&1 | grep ${nodes.discourse.services.discourse.admin.username}",
         )
 
         client.wait_for_unit("postfix.service")