diff --git a/run.sh b/run.sh
index a443497..ac9d774 100644
--- a/run.sh
+++ b/run.sh
@@ -98,9 +98,10 @@ if [ -n "${SMTP_NETWORKS}" ]; then
 
   for i in $(sed 's/,/\ /g' <<<$SMTP_NETWORKS); do
     # shellcheck disable=SC2013,SC2001,2086
-    if grep -Eq "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/[0-9]{1,2}" <<<"$i" ; then
+    if grep -Eq "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/[0-9]{1,2}" <<<$i ; then
       nets+=", $i"
-    elif grep -Eq "$ipv6re" <<<"$i" ; then
+    elif grep -Eq "$ipv6re" <<<$i ; then
+      # shellcheck disable=SC1073 
       readarray -d \/ -t arr < <(printf '%s' "$i") # shellcheck disable=SC1001
       nets+=", [${arr[0]}]/${arr[1]}"
     else