diff --git a/frontend/src/routes/documents/+page.svelte b/frontend/src/routes/documents/+page.svelte
index 7662f78..567708c 100644
--- a/frontend/src/routes/documents/+page.svelte
+++ b/frontend/src/routes/documents/+page.svelte
@@ -141,6 +141,7 @@
   let filterTag = $derived($page.url.searchParams.get('tag') || '');
   let filterSource = $derived($page.url.searchParams.get('source') || '');
   let filterFormat = $derived($page.url.searchParams.get('format') || '');
+  let filterCategory = $derived($page.url.searchParams.get('category') || '');
 
   // D.2: 필터 칩 popover 상태
   let tagPopoverOpen = $state(false);
@@ -188,6 +189,7 @@
     const _t = filterTag;
     const _src = filterSource;
     const _f = filterFormat;
+    const _c = filterCategory;
     const urlQ = $page.url.searchParams.get('q') || '';
     const urlMode = $page.url.searchParams.get('mode') || 'hybrid';
 
@@ -218,6 +220,7 @@
       if (filterTag) params.set('tag', filterTag);
       if (filterSource) params.set('source', filterSource);
       if (filterFormat) params.set('format', filterFormat);
+      if (filterCategory) params.set('category', filterCategory);
 
       const data = await api(`/documents/?${params}`);
       documents = data.items;