diff --git a/src/services/file-organizer.ts b/src/services/file-organizer.ts
index 8760308..36906d2 100644
--- a/src/services/file-organizer.ts
+++ b/src/services/file-organizer.ts
@@ -5,7 +5,7 @@ import { existsSync } from 'node:fs';
 // ── Constants ──
 
 /** Characters forbidden in filenames across Windows, macOS, and Linux. */
-const FORBIDDEN_CHARS = /[/\\:*?"<>|]/g;
+const FORBIDDEN_CHARS = /[/\\:*?"<>|#]/g;
 
 /** Control characters (0x00–0x1F). */
 const CONTROL_CHARS = /[\x00-\x1f]/g;