diff --git a/backend/src/services/atemschutz.service.ts b/backend/src/services/atemschutz.service.ts
index 5b30911..33927b3 100644
--- a/backend/src/services/atemschutz.service.ts
+++ b/backend/src/services/atemschutz.service.ts
@@ -220,7 +220,7 @@ class AtemschutzService {
   // DASHBOARD KPI / STATISTIKEN
   // =========================================================================
 
-  async getStats(userGroups: string[], userId: string): Promise<AtemschutzStats> {
+  async getStats(userGroups: string[], _userId: string): Promise<AtemschutzStats> {
     const isPrivileged = userGroups.some(g => ATEMSCHUTZ_PRIVILEGED.includes(g));
     if (!isPrivileged) {
       return {