diff --git a/nixos/tests/ec2.nix b/nixos/tests/ec2.nix
index 7a336445d793..ae9a79db5403 100644
--- a/nixos/tests/ec2.nix
+++ b/nixos/tests/ec2.nix
@@ -59,7 +59,7 @@ let
         }
       ];
     }).config;
-  image = "${imageCfg.system.build.amazonImage}/${imageCfg.image.imageFile}";
+  image = "${imageCfg.system.build.amazonImage}/${imageCfg.image.fileName}";
 
   sshKeys = import ./ssh-keys.nix pkgs;
   snakeOilPrivateKey = sshKeys.snakeOilPrivateKey.text;