diff --git a/web/package/agama-web-ui.changes b/web/package/agama-web-ui.changes
index 63ec4ae1c9..1195aab852 100644
--- a/web/package/agama-web-ui.changes
+++ b/web/package/agama-web-ui.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jan 21 09:44:08 UTC 2025 - Imobach Gonzalez Sosa <igonzalezsosa@suse.com>
+
+- Do not crash at the end of the installation when using a legacy
+  AutoYaST mode (gh#agama-project/agama#1927).
+
 -------------------------------------------------------------------
 Mon Jan 20 16:45:18 UTC 2025 - Ladislav Slezák <lslezak@suse.com>
 
diff --git a/web/src/api/storage.ts b/web/src/api/storage.ts
index d185885839..d238e9d92d 100644
--- a/web/src/api/storage.ts
+++ b/web/src/api/storage.ts
@@ -32,8 +32,8 @@ import { config } from "~/api/storage/types";
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 const probe = (): Promise<any> => post("/api/storage/probe");
 
-const fetchConfig = (): Promise<config.Config | undefined> =>
-  get("/api/storage/config").then((config) => config.storage);
+const fetchConfig = (): Promise<config.Config | null> =>
+  get("/api/storage/config").then((config) => config.storage ?? null);
 
 /**
  * Returns the list of jobs
diff --git a/web/src/components/core/InstallationFinished.tsx b/web/src/components/core/InstallationFinished.tsx
index 598ed705ca..3a609043a6 100644
--- a/web/src/components/core/InstallationFinished.tsx
+++ b/web/src/components/core/InstallationFinished.tsx
@@ -79,6 +79,10 @@ const SuccessIcon = () => <Icon name="check_circle" className="icon-xxxl color-s
 // TODO: define some utility method to get the device used as root (drive, partition, logical volume).
 // TODO: use type checking for config.
 function usingTpm(config): boolean {
+  if (!config) {
+    return null;
+  }
+
   const { guided, drives = [], volumeGroups = [] } = config;
 
   if (guided !== undefined) {