diff --git a/plugins/ssl/ssl-certificate-expiry b/plugins/ssl/ssl-certificate-expiry
index 71951ae1..ebc770e0 100755
--- a/plugins/ssl/ssl-certificate-expiry
+++ b/plugins/ssl/ssl-certificate-expiry
@@ -72,7 +72,7 @@ uncached updates after the cache file is older than an hour.
 
 =cut
 
-# shellcheck disable=SC1091
+# shellcheck disable=SC1090,SC1091
 . "${MUNIN_LIBDIR}/plugins/plugin.sh"
 
 if [ "${MUNIN_DEBUG:-0}" = 1 ]; then