diff --git a/add_my_git_ca_certs b/add_my_git_ca_certs
new file mode 100755
index 0000000..723a75f
--- /dev/null
+++ b/add_my_git_ca_certs
@@ -0,0 +1,5 @@
+#!/bin/bash
+#
+echo -n | openssl s_client -showcerts -connect git.mount-mockery.de:443  2>/dev/null  | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee /usr/local/share/ca-certificates/mount-mockery.crt
+sudo update-ca-certificates
+