diff --git a/docs/superpowers/specs/2026-10-07-scope-features-design.md b/docs/superpowers/specs/2026-10-07-scope-features-design.md
index 015bc49..e48626c 100644
--- a/docs/superpowers/specs/2026-10-07-scope-features-design.md
+++ b/docs/superpowers/specs/2026-10-07-scope-features-design.md
@@ -280,7 +280,7 @@ because the per-measurement dialog is already the busiest surface in the app.
 The second line is a `GtkLabel` in a vertical box wrapping the existing horizontal row, built in
 `measures_row()` (`src/ui.cpp:2495`) and shown or hidden by the toggle — the toggle must **not**
 call `rebuild_measures_pane()`, which drops and recreates every label including the ones the
-frame tick holds pointers to. All five numbers go through the same `format_measure_value()` the
+frame tick holds pointers to. All five numbers go through the same `format_measure()` the
 value above them uses, so units and significant figures agree by construction.
 
 ## 3. Search and navigate