diff --git a/web/src/client/storage.js b/web/src/client/storage.js
index 3356bca503..17c6b9d699 100644
--- a/web/src/client/storage.js
+++ b/web/src/client/storage.js
@@ -511,16 +511,31 @@ class StorageBaseClient {
     };
   }
 
+  /**
+   * Probes the system
+   */
   async probe() {
     const proxy = await this.proxies.storage;
     return proxy.Probe();
   }
 
+  /**
+   * Whether the system is in a deprecated status
+   *
+   * @returns {Promise<boolean>}
+   */
   async isDeprecated() {
     const proxy = await this.proxies.storage;
     return proxy.DeprecatedSystem;
   }
 
+  /**
+   * Runs a handler function when the system becomes deprecated
+   *
+   * @callback handlerFn
+   *
+   * @param {handlerFn} handler
+   */
   onDeprecate(handler) {
     return this.client.onObjectChanged(STORAGE_OBJECT, STORAGE_IFACE, (changes) => {
       if (changes.DeprecatedSystem?.v) return handler();
diff --git a/web/src/client/storage.test.js b/web/src/client/storage.test.js
index 8841d37c75..06475bea82 100644
--- a/web/src/client/storage.test.js
+++ b/web/src/client/storage.test.js
@@ -130,7 +130,7 @@ const emitSignal = (path, iface, data) => {
   if (!cockpitCallbacks[path]) return;
 
   const handler = cockpitCallbacks[path][iface];
-  if(!handler) return;
+  if (!handler) return;
 
   return handler(data);
 };
@@ -175,7 +175,7 @@ describe("#isDeprecated", () => {
 
     it("returns false", async () => {
       const result = await client.isDeprecated();
-      expect(result).toEqual(false)
+      expect(result).toEqual(false);
     });
   });
 });