diff --git a/build/run/installer.sh b/build/run/installer.sh
index e4bfc17..66efc63 100755
--- a/build/run/installer.sh
+++ b/build/run/installer.sh
@@ -90,7 +90,7 @@ postconf -e "smtp_header_checks = pcre:/etc/postfix/smtp_header_checks"
 
 # SPF and DKIM checks
 postconf -e "policy_time_limit = 3600"
-postconf -e "smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service unix:private/policy, check_client_access lmdb:/etc/postfix/rbl_override"
+postconf -e "smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service unix:private/policy, check_client_access pcre:/etc/postfix/rbl_override"
 
 # Milter configuration
 postconf -e "milter_default_action = accept"