diff --git a/src/room/ReactionAudioRenderer.tsx b/src/room/ReactionAudioRenderer.tsx
index bf490178..1e29beb0 100644
--- a/src/room/ReactionAudioRenderer.tsx
+++ b/src/room/ReactionAudioRenderer.tsx
@@ -48,10 +48,10 @@ export function ReactionsAudioRenderer(): ReactNode {
         return;
       }
       if (SoundMap[reactionName]) {
-        audioEngineRef.current.playSound(reactionName);
+        void audioEngineRef.current.playSound(reactionName);
       } else {
         // Fallback sounds.
-        audioEngineRef.current.playSound("generic");
+        void audioEngineRef.current.playSound("generic");
       }
     }
   }, [audioEngineRef, shouldPlay, oldReactions, reactions]);
diff --git a/src/useAudioContext.test.tsx b/src/useAudioContext.test.tsx
index 30bbb961..47087eb5 100644
--- a/src/useAudioContext.test.tsx
+++ b/src/useAudioContext.test.tsx
@@ -27,9 +27,11 @@ const TestComponent: FC = () => {
   }
   return (
     <>
-      <button onClick={async () => audioCtx.playSound("aSound")}>Valid sound</button>
+      <button onClick={() => void audioCtx.playSound("aSound")}>
+        Valid sound
+      </button>
       {/* eslint-disable-next-line @typescript-eslint/no-explicit-any*/}
-      <button onClick={async () => audioCtx.playSound("not-valid" as any)}>
+      <button onClick={() => void audioCtx.playSound("not-valid" as any)}>
         Invalid sound
       </button>
     </>
@@ -59,6 +61,7 @@ class MockAudioContext {
     vitest.mocked({
       connect: (v: unknown) => v,
       start: () => {},
+      addEventListener: (_eventType: string, cb: () => void) => cb(),
     }),
   );
   public createGain = vitest.fn().mockReturnValue(this.gain);