diff --git a/src/etc/signify/openbsd-66-fw.pub b/src/etc/signify/openbsd-66-fw.pub
new file mode 100644
index 00000000..2c90179e
--- /dev/null
+++ b/src/etc/signify/openbsd-66-fw.pub
@@ -0,0 +1,2 @@
+untrusted comment: OpenBSD 6.6 firmware public key
+RWSKyzM3wogTrgHkO88MnRiK/yuu8xy2OeIqhnP/uGL/j2IF4I5djMIM