diff --git a/examples/ai-code-guardrails/AI-Code-Guardrails.shadow.dave.md b/examples/ai-code-guardrails/AI-Code-Guardrails.shadow.dave.md
index faece21..81bf1de 100644
--- a/examples/ai-code-guardrails/AI-Code-Guardrails.shadow.dave.md
+++ b/examples/ai-code-guardrails/AI-Code-Guardrails.shadow.dave.md
@@ -138,7 +138,7 @@ flowchart TD
   D --> E[Remediation window]
   E --> F[Dashboard update]
   F --> G[Quarterly KPI trend review]
-  G --> H[Action items (optional)]
+  G --> H[Action items: optional]
 ```
 
 ## 03 — INTEGRATE SECURITY AWARENESS INTO DEVELOPER TRAINING
diff --git a/src/revoice/generate.py b/src/revoice/generate.py
index 256942e..46c3e20 100644
--- a/src/revoice/generate.py
+++ b/src/revoice/generate.py
@@ -281,7 +281,7 @@ def _inferred_mermaid(title: str) -> str | None:
   D --> E[Remediation window]
   E --> F[Dashboard update]
   F --> G[Quarterly KPI trend review]
-  G --> H[Action items (optional)]
+  G --> H[Action items: optional]
 """
 
     if "TRAINING" in title_upper: