diff --git a/ui/app/components/VideoPlayer.vue b/ui/app/components/VideoPlayer.vue
index 27ddaf94..3ff0f4e7 100644
--- a/ui/app/components/VideoPlayer.vue
+++ b/ui/app/components/VideoPlayer.vue
@@ -429,6 +429,7 @@ let hls: Hls | null = null;
 
 const isApple = /(iPhone|iPod|iPad).*AppleWebKit/i.test(navigator.userAgent);
 const mediaFile = computed(() => props.item.filename || '');
+const subtitleManifestUrl = computed(() => currentPlaybackUrl('api/player/subtitles/manifest'));
 const canPlay = computed(() => Boolean(mediaFile.value && !loadingError.value));
 const shouldRender = computed(() => active.value && !loading.value);
 const isPlaying = computed(() => !paused.value);
@@ -456,7 +457,7 @@ const {
   usesAssSubtitleTrack,
   hasSubtitles,
 } = usePlayerSubtitles({
-  mediaFile,
+  manifestUrl: subtitleManifestUrl,
   isVideo: computed(() => !isAudio.value),
   canPlay,
   shouldRender,
diff --git a/ui/app/composables/usePlayerSubtitles.ts b/ui/app/composables/usePlayerSubtitles.ts
index 0aa68d68..355bf24a 100644
--- a/ui/app/composables/usePlayerSubtitles.ts
+++ b/ui/app/composables/usePlayerSubtitles.ts
@@ -8,7 +8,7 @@ import {
   toValue,
 } from 'vue';
 import type { SubtitleManifestResponse, SubtitleTrack } from '~/types/subtitles';
-import { encodePath, parse_api_error, request, uri } from '~/utils';
+import { parse_api_error, request } from '~/utils';
 
 type AssRendererInstance = {
   destroy(): unknown;
@@ -22,7 +22,7 @@ type AssRendererConstructor = new (
 ) => AssRendererInstance;
 
 type UsePlayerSubtitlesOptions = {
-  mediaFile: MaybeRefOrGetter<string>;
+  manifestUrl: MaybeRefOrGetter<string>;
   isVideo: MaybeRefOrGetter<boolean>;
   canPlay: MaybeRefOrGetter<boolean>;
   shouldRender: MaybeRefOrGetter<boolean>;
@@ -74,7 +74,7 @@ export function usePlayerSubtitles(options: UsePlayerSubtitlesOptions) {
   }
 
   async function loadTracks() {
-    const mediaFile = toValue(options.mediaFile);
+    const manifestUrl = toValue(options.manifestUrl);
     const isVideo = toValue(options.isVideo);
     const canPlay = toValue(options.canPlay);
     const requestId = ++subtitleRequestId;
@@ -84,7 +84,7 @@ export function usePlayerSubtitles(options: UsePlayerSubtitlesOptions) {
     tracks.value = [];
     subtitleLoadError.value = '';
 
-    if (!mediaFile || !isVideo || !canPlay) {
+    if (!manifestUrl || !isVideo || !canPlay) {
       subtitleLoading.value = false;
       return;
     }
@@ -92,7 +92,7 @@ export function usePlayerSubtitles(options: UsePlayerSubtitlesOptions) {
     subtitleLoading.value = true;
 
     try {
-      const res = await request(uri(`/api/player/subtitles/manifest/${encodePath(mediaFile)}`));
+      const res = await request(manifestUrl);
       const payload = (await res.json()) as SubtitleManifestResponse | { error?: string };
       if (!res.ok) {
         throw new Error(await parse_api_error(payload));
@@ -176,7 +176,7 @@ export function usePlayerSubtitles(options: UsePlayerSubtitlesOptions) {
   }
 
   watch(
-    () => [toValue(options.mediaFile), toValue(options.isVideo), toValue(options.canPlay)],
+    () => [toValue(options.manifestUrl), toValue(options.isVideo), toValue(options.canPlay)],
     () => {
       void loadTracks();
     },
diff --git a/ui/tests/composables/usePlayerSubtitles.test.ts b/ui/tests/composables/usePlayerSubtitles.test.ts
index f89e9348..0b22d6bb 100644
--- a/ui/tests/composables/usePlayerSubtitles.test.ts
+++ b/ui/tests/composables/usePlayerSubtitles.test.ts
@@ -114,7 +114,7 @@ describe('usePlayerSubtitles', () => {
     );
 
     const { usePlayerSubtitles } = await import('~/composables/usePlayerSubtitles');
-    const mediaFile = ref('video file.mkv');
+    const manifestUrl = ref('/api/player/subtitles/manifest/video%20file.mkv');
     const isVideo = ref(true);
     const canPlay = ref(true);
     const shouldRender = ref(false);
@@ -123,7 +123,7 @@ describe('usePlayerSubtitles', () => {
 
     const { hasSubtitles, nativeSubtitleTrack, selectedSubtitleTrack, usesAssSubtitleTrack } =
       usePlayerSubtitles({
-        mediaFile,
+        manifestUrl,
         isVideo,
         canPlay,
         shouldRender,
@@ -140,6 +140,36 @@ describe('usePlayerSubtitles', () => {
     expect(usesAssSubtitleTrack.value).toBe(false);
   });
 
+  it('uses the provided full manifest path including folders', async () => {
+    fetchMock.mockResolvedValueOnce(
+      createMockResponse({
+        ok: true,
+        status: 200,
+        jsonData: { subtitles: [] },
+      }),
+    );
+
+    const { usePlayerSubtitles } = await import('~/composables/usePlayerSubtitles');
+
+    usePlayerSubtitles({
+      manifestUrl: ref(
+        '/api/player/subtitles/manifest/youtube/Channel%20Name/Season%202026/video%20file.mkv',
+      ),
+      isVideo: ref(true),
+      canPlay: ref(true),
+      shouldRender: ref(false),
+      video: ref<HTMLVideoElement | null>(document.createElement('video')),
+      overlay: ref<HTMLElement | null>(document.createElement('div')),
+    });
+
+    await flushPromises();
+
+    expect(fetchMock).toHaveBeenCalledWith(
+      '/api/player/subtitles/manifest/youtube/Channel%20Name/Season%202026/video%20file.mkv',
+      expect.anything(),
+    );
+  });
+
   it('creates and destroys an ASS renderer for ASS subtitles when playback becomes active', async () => {
     fetchMock.mockResolvedValueOnce(
       createMockResponse({
@@ -164,7 +194,7 @@ describe('usePlayerSubtitles', () => {
     const loadRenderer = mock(async () => assConstructorMock as any);
 
     const { usePlayerSubtitles } = await import('~/composables/usePlayerSubtitles');
-    const mediaFile = ref('video.mkv');
+    const manifestUrl = ref('/api/player/subtitles/manifest/video.mkv');
     const isVideo = ref(true);
     const canPlay = ref(true);
     const shouldRender = ref(false);
@@ -172,7 +202,7 @@ describe('usePlayerSubtitles', () => {
     const overlay = ref<HTMLElement | null>(document.createElement('div'));
 
     const { usesAssSubtitleTrack } = usePlayerSubtitles({
-      mediaFile,
+      manifestUrl,
       isVideo,
       canPlay,
       shouldRender,
@@ -195,7 +225,7 @@ describe('usePlayerSubtitles', () => {
     expect(assConstructorMock).toHaveBeenCalledTimes(1);
     expect(assShowMock).toHaveBeenCalledTimes(1);
 
-    mediaFile.value = 'second.mkv';
+    manifestUrl.value = '/api/player/subtitles/manifest/second.mkv';
     fetchMock.mockResolvedValueOnce(
       createMockResponse({
         ok: true,
@@ -235,7 +265,7 @@ describe('usePlayerSubtitles', () => {
     const assLayoutVersion = ref(0);
 
     usePlayerSubtitles({
-      mediaFile: ref('video.mkv'),
+      manifestUrl: ref('/api/player/subtitles/manifest/video.mkv'),
       isVideo: ref(true),
       canPlay: ref(true),
       shouldRender: ref(true),