diff --git a/update.sh b/update.sh
index 05b7ddd..e91f246 100755
--- a/update.sh
+++ b/update.sh
@@ -80,6 +80,8 @@ info "Spiele Backend ein..."
 mkdir -p "$BIN_DIR"
 cp "$BUILD_DIR/archivmail-new" "$BIN_DIR/archivmail"
 chmod +x "$BIN_DIR/archivmail"
+# Service-Binary direkt überschreiben (nach systemctl stop)
+cp "$BIN_DIR/archivmail" "$INSTALL_DIR/archivmail"
 ln -sf "$BIN_DIR/archivmail" /usr/local/bin/archivmail
 log "Backend eingespielt"