diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go
index 3c5e79df8..fbbbb1272 100644
--- a/pkg/tcpip/network/ipv4/ipv4.go
+++ b/pkg/tcpip/network/ipv4/ipv4.go
@@ -253,9 +253,6 @@ func (e *endpoint) MulticastForwarding() bool {
 
 // SetMulticastForwarding implements stack.MulticastForwardingNetworkEndpoint.
 func (e *endpoint) SetMulticastForwarding(forwarding bool) bool {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-
 	updatedForwarding := uint32(forwardingDisabled)
 	if forwarding {
 		updatedForwarding = forwardingEnabled
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go
index ca7e7ddd3..0813a9ceb 100644
--- a/pkg/tcpip/network/ipv6/ipv6.go
+++ b/pkg/tcpip/network/ipv6/ipv6.go
@@ -522,9 +522,6 @@ func (e *endpoint) MulticastForwarding() bool {
 
 // SetMulticastForwarding implements stack.MulticastForwardingNetworkEndpoint.
 func (e *endpoint) SetMulticastForwarding(forwarding bool) bool {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-
 	updatedForwarding := uint32(forwardingDisabled)
 	if forwarding {
 		updatedForwarding = forwardingEnabled