diff --git a/CLAUDE.md b/CLAUDE.md
index ee4a85c..d418374 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -17,7 +17,12 @@ checklist per group, and calls `install_<name>()` for each selected item.
 
 1. Create `services/<name>.sh` (kebab-case filename)
 2. Call `register_service` at the top of the file
-3. Define `install_<name>()` (hyphens → underscores in function name)
+3. Define `install_<name>()` — keep hyphens **literal** in the function name
+   (`install_asterisk-digital-ocean`, not `install_asterisk_digital_ocean`).
+   `setup.sh`'s dispatcher calls `install_${name}` with no hyphen→underscore
+   conversion, so the function name must match the service name exactly.
+   Confirmed live: a mismatched underscore here produces
+   `Service 'x' has no install_x` at runtime, not a load-time error.
 
 That's it. The menu picks it up on the next run.
 
diff --git a/services/security-dashboard.sh b/services/security-dashboard.sh
index 6690b54..9601baf 100644
--- a/services/security-dashboard.sh
+++ b/services/security-dashboard.sh
@@ -66,7 +66,7 @@ fi
 
 register_service security-dashboard homelab "Security dashboard: Asterisk failed-connections + CrowdSec bans (Authelia-protected)" 8092
 
-install_security_dashboard() {
+install_security-dashboard() {
     local APP_DIR="/opt/security-dashboard"
     local DASHBOARD_PORT=8092
     local ASTERISK_LOG_DIR="$DOCKER_DIR/asterisk-digital-ocean/logs"
@@ -682,4 +682,4 @@ if __name__ == "__main__":
 PYAPP
 }
 
-[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_security_dashboard
+[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_security-dashboard