diff --git a/modules/dhcp6_spoof.go b/modules/dhcp6_spoof.go
index a052a53f..93fdac7b 100644
--- a/modules/dhcp6_spoof.go
+++ b/modules/dhcp6_spoof.go
@@ -383,5 +383,6 @@ func (s *DHCP6Spoofer) Stop() error {
 		return session.ErrAlreadyStopped
 	}
 	s.SetRunning(false)
+	s.Handle.Close()
 	return nil
 }
diff --git a/modules/dns_spoof.go b/modules/dns_spoof.go
index 394dd461..3e4ee7ec 100644
--- a/modules/dns_spoof.go
+++ b/modules/dns_spoof.go
@@ -280,5 +280,6 @@ func (s *DNSSpoofer) Stop() error {
 		return session.ErrAlreadyStopped
 	}
 	s.SetRunning(false)
+	s.Handle.Close()
 	return nil
 }
diff --git a/modules/net_sniff.go b/modules/net_sniff.go
index b3e2f412..91efc0ae 100644
--- a/modules/net_sniff.go
+++ b/modules/net_sniff.go
@@ -186,5 +186,6 @@ func (s *Sniffer) Stop() error {
 		return session.ErrAlreadyStopped
 	}
 	s.SetRunning(false)
+	s.Ctx.Close()
 	return nil
 }