diff --git a/bundles/sshmon/files/check_https_certificate_at_url b/bundles/sshmon/files/check_https_certificate_at_url
index e9fb507..ce0f0ba 100644
--- a/bundles/sshmon/files/check_https_certificate_at_url
+++ b/bundles/sshmon/files/check_https_certificate_at_url
@@ -22,7 +22,8 @@ case "$issuer_hash" in
     # 462422cf: issuer=C = US, O = Let's Encrypt, CN = E5
     # 9aad238c: issuer=C = US, O = Let's Encrypt, CN = E6
     # 31dfb39d: issuer=C = US, O = Let's Encrypt, CN = R11
-    4f06f81d|8d33f237|462422cf|9aad238c|31dfb39d)
+    # aa578057: issuer=C = US, O = Let's Encrypt, CN = R10
+    4f06f81d|8d33f237|462422cf|9aad238c|31dfb39d|aa578057)
         warn_days=10
         crit_days=3
         ;;