diff --git a/hosts/Emitter.nix b/hosts/Emitter.nix
index a19034c..5c23f64 100644
--- a/hosts/Emitter.nix
+++ b/hosts/Emitter.nix
@@ -97,6 +97,8 @@
                     mv $out/sbin/burp $out/sbin/burp-untunneled
                     cat > $out/sbin/burp <<-EOF
                     #!/${pkgs.bash}/bin/bash
+                    set -e
+                    ${pkgs.unixtools.ping}/bin/ping -c1 rupert.gvfr.de >/dev/null
                     ${pkgs.openssh}/bin/ssh -i /secrets/id_burp_remote -o IdentitiesOnly=yes -o ExitOnForwardFailure=yes -L 4971:localhost:4971 burp-remote@rupert.gvfr.de -f true
                     $out/sbin/burp-untunneled \$@
                     EOF