1 files changed, 1 insertions, 1 deletions
diff --git a/TODO.md b/TODO.md
index b154926..aca1257 100644
--- a/TODO.md
+++ b/TODO.md
@@ -8,7 +8,7 @@
 
 Procedural spectrogram tool: 50-100× compression (5 KB .spec → ~100 bytes C++).
 
-**Design:** `doc/SPECTRAL_BRUSH_EDITOR.md`
+**Design:** `doc/SPECTRAL_BRUSH_2.md` (MQ-based v2)
 
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