diff --git a/src/common/pages/from-uri.js b/src/common/pages/from-uri.js
index e82dd4bf..cc70e89f 100644
--- a/src/common/pages/from-uri.js
+++ b/src/common/pages/from-uri.js
@@ -243,6 +243,7 @@ export function openAddFromURIModal() {
       descriptionEdited = true;
     });
 
+    /** @type {ReturnType<typeof setTimeout> | undefined} */
     let fillTimer;
     uriEl?.addEventListener("input", () => {
       clearTimeout(fillTimer);
diff --git a/src/components/engine/audio/element.js b/src/components/engine/audio/element.js
index f2707777..52f73728 100644
--- a/src/components/engine/audio/element.js
+++ b/src/components/engine/audio/element.js
@@ -1049,13 +1049,13 @@ class AudioEngineItem extends BroadcastableDiffuseElement {
   static observedAttributes = ["preload"];
 
   // MEDIA ERROR RETRY
-  /** @type {number | undefined} Pending automatic retry timeout. */
+  /** @type {ReturnType<typeof setTimeout> | undefined} Pending automatic retry timeout. */
   #retryTimer = undefined;
   /** @type {number} Retry attempts already used. */
   #retryAttempt = 0;
 
   // LOAD WATCHDOG
-  /** @type {number | undefined} Pending load-watchdog timeout. */
+  /** @type {ReturnType<typeof setTimeout> | undefined} Pending load-watchdog timeout. */
   #watchdogTimer = undefined;
   /** @type {number} Watchdog trips used for backoff growth. */
   #watchdogAttempt = 0;