diff --git a/loop/plan.md b/loop/plan.md
index 20d577c6..f7a55bc2 100644
--- a/loop/plan.md
+++ b/loop/plan.md
@@ -402,7 +402,7 @@
 
 - [ ] **FINAL-03** — Run final sweep. Execute `/sweep`. All metrics must be at zero violations or documented exceptions. **Acceptance**: Sweep report clean.
 
-- [ ] **FINAL-04** — Performance benchmark and optimize. Benchmark: page load time (<2s on LAN), RPC response time (<100ms for reads, <500ms for writes), container install time (<60s for cached images). Optimize any failures. **Acceptance**: All benchmarks met.
+- [x] **FINAL-04** — Performance benchmark and optimize. Benchmark: page load time (<2s on LAN), RPC response time (<100ms for reads, <500ms for writes), container install time (<60s for cached images). Optimize any failures. **Acceptance**: All benchmarks met.
 
 #### Sprint 34: Release Engineering (Week 5-8)