diff --git a/core/src/main/java/ru/kirillius/pf/sdn/core/Util/IPv4Util.java b/core/src/main/java/ru/kirillius/pf/sdn/core/Util/IPv4Util.java
index 2b23e58..b3bd224 100644
--- a/core/src/main/java/ru/kirillius/pf/sdn/core/Util/IPv4Util.java
+++ b/core/src/main/java/ru/kirillius/pf/sdn/core/Util/IPv4Util.java
@@ -137,7 +137,7 @@ public class IPv4Util {
             var overlapped = new ArrayList<IPv4Subnet>();
             var orderedByPrefix = result.stream().sorted(Comparator.comparing(IPv4Subnet::getPrefixLength)).toList();
             orderedByPrefix.stream()
-                    .filter(subnet -> subnet.getPrefixLength() > 32)
+                    .filter(subnet -> subnet.getPrefixLength() < 32)
                     .forEach(parent -> orderedByPrefix.forEach(subnet -> {
                         if (subnet.equals(parent)) {
                             return;