diff --git a/src/utils/noteListHelpers.test.ts b/src/utils/noteListHelpers.test.ts
index a0d53c02..bb6b18b0 100644
--- a/src/utils/noteListHelpers.test.ts
+++ b/src/utils/noteListHelpers.test.ts
@@ -730,3 +730,16 @@ describe('filterEntries — fileKind filtering', () => {
     expect(result.map(e => e.title)).toEqual(['Old'])
   })
 })
+
+describe('filterInboxEntries — excludes non-markdown files', () => {
+  it('only shows markdown files in inbox', () => {
+    const now = Math.floor(Date.now() / 1000)
+    const entries = [
+      makeEntry({ path: '/vault/note.md', title: 'Note', fileKind: 'markdown', createdAt: now }),
+      makeEntry({ path: '/vault/config.yml', title: 'config.yml', fileKind: 'text', createdAt: now }),
+      makeEntry({ path: '/vault/photo.png', title: 'photo.png', fileKind: 'binary', createdAt: now }),
+    ]
+    const result = filterInboxEntries(entries, 'all')
+    expect(result.map(e => e.title)).toEqual(['Note'])
+  })
+})
diff --git a/src/utils/noteListHelpers.ts b/src/utils/noteListHelpers.ts
index a7f18e97..b293021b 100644
--- a/src/utils/noteListHelpers.ts
+++ b/src/utils/noteListHelpers.ts
@@ -381,8 +381,9 @@ export function countAllByFilter(entries: VaultEntry[]): Record<NoteListFilter,
 
 // --- Inbox ---
 
-/** Check if entry belongs in the Inbox (not organized, not trashed/archived, not a Type). */
+/** Check if entry belongs in the Inbox (markdown only, not organized, not trashed/archived, not a Type). */
 export function isInboxEntry(entry: VaultEntry): boolean {
+  if (!isMarkdown(entry)) return false
   if (entry.trashed || entry.archived) return false
   if (entry.isA === 'Type') return false
   return !entry.organized