diff --git a/hooks/gsd-workflow-guard.js b/hooks/gsd-workflow-guard.js
index d8075aaf6..5cee8184f 100644
--- a/hooks/gsd-workflow-guard.js
+++ b/hooks/gsd-workflow-guard.js
@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+// gsd-hook-version: {{GSD_VERSION}}
 // GSD Workflow Guard — PreToolUse hook
 // Detects when Claude attempts file edits outside a GSD workflow context
 // (no active /gsd: command or Task subagent) and injects an advisory warning.