diff --git a/flake.nix b/flake.nix
index 06801cf0..a6a166c8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -146,7 +146,7 @@
                 in {
                   installerSystem = installerConfiguration;
                   installer = let
-                    isoName = installerConfiguration.config.isoImage.isoName;
+                    isoName = "${installerConfiguration.config.image.baseName}.iso";
                     isoPath = "${installerConfiguration.config.system.build.isoImage}/iso/${isoName}";
                   in pkgs.runCommandLocal isoName { inherit isoPath; } ''ln -s "$isoPath" $out'';
                 };
diff --git a/installer/default.nix b/installer/default.nix
index 0e2a5f97..091bdba1 100644
--- a/installer/default.nix
+++ b/installer/default.nix
@@ -11,8 +11,8 @@
   boot.initrd.systemd.enable = lib.mkImageMediaOverride false;
   boot.initrd.systemd.emergencyAccess = lib.mkImageMediaOverride true;
 
-  isoImage.isoName = lib.mkImageMediaOverride
-    "foosteros-${config.system.build.installHostname}-${config.system.nixos.release}-${self.shortRev or "dirty"}-${pkgs.stdenv.hostPlatform.uname.processor}.iso";
+  image.baseName = lib.mkImageMediaOverride
+    "foosteros-${config.system.build.installHostname}-${config.system.nixos.release}-${self.shortRev or "dirty"}-${pkgs.stdenv.hostPlatform.uname.processor}";
   isoImage.volumeID = "foosteros-${config.system.nixos.release}-${self.shortRev or "dirty"}-${pkgs.stdenv.hostPlatform.uname.processor}";
 
   networking.hostName = lib.mkImageMediaOverride "${config.system.build.installHostname}-installer";