diff --git a/bootstrap.sh b/bootstrap.sh
index 5ec4333..7524c3a 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -82,9 +82,11 @@ if command -v npm &>/dev/null; then
         || missing_other+=("npm install -g markdownlint-cli2")
 else
     if ! command -v markdownlint-cli2 &>/dev/null; then
-        echo "  FEHLT  markdownlint-cli2 (Node.js nicht vorhanden)"
-        missing_other+=("curl -fsSL https://fnm.vercel.app/install | bash"
-                        "fnm install --lts"
+        echo "  FEHLT  markdownlint-cli2 (npm nicht vorhanden)"
+        if ! command -v fnm &>/dev/null; then
+            missing_other+=("curl -fsSL https://fnm.vercel.app/install | bash")
+        fi
+        missing_other+=("fnm install --lts"
                         "npm install -g markdownlint-cli2")
     else
         echo "  OK  markdownlint-cli2 ($(markdownlint-cli2 --version 2>/dev/null | head -1 || true))"