diff --git a/build/10-build.sh b/build/10-build.sh
index d79b7c2..faaa4cd 100755
--- a/build/10-build.sh
+++ b/build/10-build.sh
@@ -40,6 +40,11 @@ copr_install_isolated "ryanabx/cosmic-epoch" \
   cosmic-desktop
 echo "::endgroup::"
 
+#firstboot-Marker setzen
+mkdir -p /etc/myos
+: > /etc/myos/firstboot
+
+
 echo "::group:: System Configuration"
 systemctl enable podman.socket
 systemctl enable bluetooth.service