diff --git a/systemd/install.sh b/systemd/install.sh
index 0bf7837..c3786ef 100644
--- a/systemd/install.sh
+++ b/systemd/install.sh
@@ -96,7 +96,7 @@ log "Aplikacja rozpakowana do $APP_DIR"
 sudo -u karl bash -c "python3 -m venv venv && source venv/bin/activate && pip install uv && uv sync"
 
 # --- 10. Kopiowanie pliku usługi systemd ---
-SERVICE_SRC="$(dirname "$(realpath "$0")")/karl.service"
+SERVICE_SRC="$APP_DIR/systemd/karl.service"
 SERVICE_DST="/etc/systemd/system/karl.service"
 
 if [[ ! -f "$SERVICE_SRC" ]]; then