diff --git a/dhcpv4/dhcpv4.go b/dhcpv4/dhcpv4.go
index 2b9a2fc9..36c726f6 100644
--- a/dhcpv4/dhcpv4.go
+++ b/dhcpv4/dhcpv4.go
@@ -606,7 +606,7 @@ func (d *DHCPv4) NTPServers() []net.IP {
 //
 // The NetBIOS over TCP/IP Name Server option is described by RFC 2132, Section 8.5.
 func (d *DHCPv4) NetBIOSNameServers() []net.IP {
-	return GetIPs(OptionNetBIOSOverTCPIPNameServers, d.Options)
+	return GetIPs(OptionNetBIOSOverTCPIPNameServer, d.Options)
 }
 
 // DNS parses the DHCPv4 Domain Name Server option if present.
diff --git a/dhcpv4/option_ips.go b/dhcpv4/option_ips.go
index 2778e64d..cbb81a22 100644
--- a/dhcpv4/option_ips.go
+++ b/dhcpv4/option_ips.go
@@ -92,7 +92,7 @@ func OptNTPServers(ntpServers ...net.IP) Option {
 // The NetBIOS over TCP/IP Name Server option is described by RFC 2132, Section 8.5.
 func OptNetBIOSNameServers(netBIOSNameServers ...net.IP) Option {
 	return Option{
-		Code:  OptionNetBIOSOverTCPIPNameServers,
+		Code:  OptionNetBIOSOverTCPIPNameServer,
 		Value: IPs(netBIOSNameServers),
 	}
 }
diff --git a/dhcpv4/option_ips_test.go b/dhcpv4/option_ips_test.go
index 2d20a40b..3fb91a9a 100644
--- a/dhcpv4/option_ips_test.go
+++ b/dhcpv4/option_ips_test.go
@@ -71,9 +71,9 @@ func TestGetNTPServers(t *testing.T) {
 
 func TestOptNetBIOSNameServers(t *testing.T) {
 	o := OptNetBIOSNameServers(net.IPv4(192, 168, 0, 1), net.IPv4(192, 168, 0, 10))
-	require.Equal(t, OptionNetBIOSOverTCPIPNameServers, o.Code)
+	require.Equal(t, OptionNetBIOSOverTCPIPNameServer, o.Code)
 	require.Equal(t, []byte{192, 168, 0, 1, 192, 168, 0, 10}, o.Value.ToBytes())
-	require.Equal(t, "NetBIOS over TCP/IP Name Servers: 192.168.0.1, 192.168.0.10", o.String())
+	require.Equal(t, "NetBIOS over TCP/IP Name Server: 192.168.0.1, 192.168.0.10", o.String())
 }
 
 func TestGetNetBIOSNameServers(t *testing.T) {
diff --git a/dhcpv4/types.go b/dhcpv4/types.go
index 35f323d1..80ea49cf 100644
--- a/dhcpv4/types.go
+++ b/dhcpv4/types.go
@@ -180,7 +180,7 @@ const (
 	OptionNetworkInformationServers                  optionCode = 41
 	OptionNTPServers                                 optionCode = 42
 	OptionVendorSpecificInformation                  optionCode = 43
-	OptionNetBIOSOverTCPIPNameServers                optionCode = 44
+	OptionNetBIOSOverTCPIPNameServer                 optionCode = 44
 	OptionNetBIOSOverTCPIPDatagramDistributionServer optionCode = 45
 	OptionNetBIOSOverTCPIPNodeType                   optionCode = 46
 	OptionNetBIOSOverTCPIPScope                      optionCode = 47
@@ -345,7 +345,7 @@ var optionCodeToString = map[OptionCode]string{
 	OptionNetworkInformationServers:                  "Network Information Servers",
 	OptionNTPServers:                                 "NTP Servers",
 	OptionVendorSpecificInformation:                  "Vendor Specific Information",
-	OptionNetBIOSOverTCPIPNameServers:                "NetBIOS over TCP/IP Name Servers",
+	OptionNetBIOSOverTCPIPNameServer:                 "NetBIOS over TCP/IP Name Server",
 	OptionNetBIOSOverTCPIPDatagramDistributionServer: "NetBIOS over TCP/IP Datagram Distribution Server",
 	OptionNetBIOSOverTCPIPNodeType:                   "NetBIOS over TCP/IP Node Type",
 	OptionNetBIOSOverTCPIPScope:                      "NetBIOS over TCP/IP Scope",