diff --git a/components/content/ProseA.vue b/components/content/ProseA.vue
index df4c3cf7..e45cae96 100644
--- a/components/content/ProseA.vue
+++ b/components/content/ProseA.vue
@@ -7,6 +7,7 @@ import { isLocalPath, sanitizeInternalPath } from '@/assets/js/misc';
 const runtimeConfig = useRuntimeConfig();
 const rootDomain = parseURL(runtimeConfig.public.baseUrl);
 const { resolve } = useRouter();
+const route = useRoute();
 const localePath = useGLocalePath();
 
 const props = defineProps({
@@ -28,7 +29,7 @@ const url = parseURL(realHref.value);
 
 if (isLocalPath(realHref.value)) {
     // 相対パスの場合（trailing slashがあるので１つくり下げる）
-    if (isRelative(realHref.value)) {
+    if (isRelative(realHref.value) && route.meta.__isDocsIndexPage !== true) {
         realHref.value = joinURL('../', realHref.value.replace(/^\.\//, ''));
     }
 
diff --git a/pages/docs/[...slug].vue b/pages/docs/[...slug].vue
index 48060b2f..adb7416c 100644
--- a/pages/docs/[...slug].vue
+++ b/pages/docs/[...slug].vue
@@ -70,6 +70,10 @@ if (!data.value) {
     throw createError({ statusCode: 404, statusMessage: 'page not found', fatal: true });
 }
 
+if (data.value._path && /index\.[a-z]+$/.test(data.value._path)) {
+    route.meta.__isDocsIndexPage = true;
+}
+
 route.meta.title = data.value?.title;
 if (data.value.description) {
     route.meta.description = data.value.description;
diff --git a/types/router.d.ts b/types/router.d.ts
index 7d8b3026..093bad8f 100644
--- a/types/router.d.ts
+++ b/types/router.d.ts
@@ -17,5 +17,8 @@ declare module 'vue-router' {
             };
             customClass?: string;
         };
+
+        /** @private */
+        __isDocsIndexPage?: boolean;
     }
 }
\ No newline at end of file