diff --git a/libnetwork/iptables/firewalld.go b/libnetwork/iptables/firewalld.go
index 3aea884d76..90aff1f8f1 100644
--- a/libnetwork/iptables/firewalld.go
+++ b/libnetwork/iptables/firewalld.go
@@ -65,8 +65,8 @@ var (
 	onReloaded       []*func() // callbacks when Firewalld has been reloaded
 )
 
-// FirewalldInit initializes firewalld management code.
-func FirewalldInit() error {
+// firewalldInit initializes firewalld management code.
+func firewalldInit() error {
 	var err error
 
 	if connection, err = newConnection(); err != nil {
diff --git a/libnetwork/iptables/firewalld_test.go b/libnetwork/iptables/firewalld_test.go
index f613e53691..6ed07e5f76 100644
--- a/libnetwork/iptables/firewalld_test.go
+++ b/libnetwork/iptables/firewalld_test.go
@@ -13,7 +13,7 @@ func TestFirewalldInit(t *testing.T) {
 	if !checkRunning() {
 		t.Skip("firewalld is not running")
 	}
-	if err := FirewalldInit(); err != nil {
+	if err := firewalldInit(); err != nil {
 		t.Fatal(err)
 	}
 }
diff --git a/libnetwork/iptables/iptables.go b/libnetwork/iptables/iptables.go
index d685f86119..610adab87c 100644
--- a/libnetwork/iptables/iptables.go
+++ b/libnetwork/iptables/iptables.go
@@ -125,7 +125,7 @@ func initFirewalld() {
 		log.G(context.TODO()).Info("skipping firewalld management for rootless mode")
 		return
 	}
-	if err := FirewalldInit(); err != nil {
+	if err := firewalldInit(); err != nil {
 		log.G(context.TODO()).WithError(err).Debugf("unable to initialize firewalld; using raw iptables instead")
 	}
 }