diff --git a/sbin/pdns.sh b/sbin/pdns.sh
index 65b4019..e92b9aa 100755
--- a/sbin/pdns.sh
+++ b/sbin/pdns.sh
@@ -174,7 +174,7 @@ function pdns:getoptions () {
           fi
           if ! pdns::validate_domain $zone; then
             echo "ERROR: $zone is not a valid domain name."
-            exit
+            exit 1
           fi
           ;;
         e ) # max (integer) – Maximum number of entries to return
@@ -228,7 +228,7 @@ function pdns:getoptions () {
           fi
           if ! pdns::validate_domain $zone; then
             echo "ERROR: $zone is not a valid domain name."
-            exit
+            exit 1
           fi
           ;;
         \? )