diff --git a/Dockerfile.app b/Dockerfile.app
index a18f4f2..fef9b8d 100644
--- a/Dockerfile.app
+++ b/Dockerfile.app
@@ -20,7 +20,7 @@ WORKDIR /build/app
 
 # .env.production wird zur Build-Zeit ausgewertet → Werte landen im Bundle
 RUN if [ -n "$SUPABASE_URL" ]; then \
-      printf "VITE_SUPABASE_URL=%s\nVITE_SUPABASE_ANON_KEY=%s\nVITE_SERVER_MODE=1\nVITE_SERVER_MODE=1\n" "$SUPABASE_URL" "$SUPABASE_ANON_KEY" > .env.production; \
+      printf "VITE_SUPABASE_URL=%s\nVITE_SUPABASE_ANON_KEY=%s\nVITE_SERVER_MODE=1\n" "$SUPABASE_URL" "$SUPABASE_ANON_KEY" > .env.production; \
     fi
 
 RUN npm install --no-audit --no-fund && npm run build