diff --git a/checkssl b/checkssl
index 552cabe..65002e5 100755
--- a/checkssl
+++ b/checkssl
@@ -367,7 +367,8 @@ while IFS= read -r LINE; do
     ENDDATE=$(echo "$CERTINFO" | openssl x509 -noout -enddate 2>/dev/null| cut -d= -f 2-)
     [[ -z $ENDDATE ]] && ENDDATE="-"
     debug "$ENDDATE"
-    if [ "${DOMAIN}" != "$ISSUEDTO" ]; then
+    # shellcheck disable=SC2053
+    if [[ $DOMAIN != $ISSUEDTO ]]; then
       if [[ -z $CERTINFO ]]; then
         PROBLEMS=$(echo "${PROBLEMS}- no certificate found")
       else