diff --git a/headers/modsecurity/rules_properties.h b/headers/modsecurity/rules_properties.h
index a9b1b8fe9..eb9cde518 100644
--- a/headers/modsecurity/rules_properties.h
+++ b/headers/modsecurity/rules_properties.h
@@ -430,19 +430,19 @@ class RulesProperties {
             std::vector<modsecurity::Rule *> *rules_from = from+i;
             for (size_t j = 0; j < rules_from->size(); j++) {
                 Rule *rule = rules_from->at(j);
-                for (size_t z = 0; z < rules_to->size(); z++) {
-                    Rule *rule_ckc = rules_to->at(z);
-                    if (rule_ckc->m_ruleId == rule->m_ruleId &&
-                        rule_ckc->m_secMarker == false &&
-                        rule->m_secMarker == false) {
-                        if (err != NULL) {
-                            *err << "Rule id: " \
-                                 << std::to_string(rule->m_ruleId) \
-                                 << " is duplicated" << std::endl;
-                        }
-                        return -1;
-                    }
-                }
+                //for (size_t z = 0; z < rules_to->size(); z++) {
+                //    Rule *rule_ckc = rules_to->at(z);
+                //    if (rule_ckc->m_ruleId == rule->m_ruleId &&
+                //        rule_ckc->m_secMarker == false &&
+                //        rule->m_secMarker == false) {
+                //        if (err != NULL) {
+                //            *err << "Rule id: " \
+                //                 << std::to_string(rule->m_ruleId) \
+                //                 << " is duplicated" << std::endl;
+                //        }
+                //        return -1;
+                //    }
+                //}
                 amount_of_rules++;
                 rules_to->push_back(rule);
                 rule->refCountIncrease();