diff --git a/test/common.nix b/test/common.nix
index e783b67..08b6b7e 100644
--- a/test/common.nix
+++ b/test/common.nix
@@ -155,8 +155,8 @@ let
               server.copy_from_vm("trace")
           except:
               print("No trace found on server")
-          # if code != 0:
-          #     raise Exception("login_playwright did not succeed")
+          if code != 0:
+              raise Exception("login_playwright did not succeed")
     '')
     + (optionalString (hasAttr "test" nodes.client && hasAttr "login" nodes.client.test) ''
       with subtest("Login from client"):
@@ -166,8 +166,8 @@ let
               client.copy_from_vm("trace")
           except:
               print("No trace found on client")
-          # if code != 0:
-          #     raise Exception("login_playwright did not succeed")
+          if code != 0:
+              raise Exception("login_playwright did not succeed")
     '')
   );