diff --git a/internal/dhcp/dhcp_test.go b/internal/dhcp/dhcp_test.go
index 94c7d7b..a2d5e60 100644
--- a/internal/dhcp/dhcp_test.go
+++ b/internal/dhcp/dhcp_test.go
@@ -109,32 +109,6 @@ func TestGenerateConfig_NoDefaultGateway(t *testing.T) {
 	}
 }
 
-func TestGenerateConfig_NoDefaultGatewaySuppressesRouterOption(t *testing.T) {
-	conf := newConf(t, "192.168.1.0/29")
-	conf.DefaultGateway = nil
-	path, _, _ := GenerateConfig(conf)
-	content, _ := os.ReadFile(path)
-
-	if !strings.Contains(string(content), "\ndhcp-option=3\n") {
-		t.Errorf("dhcp-option=3 nue absente : sans elle dnsmasq annonce sa propre adresse comme routeur\n%s", content)
-	}
-}
-
-func TestGenerateConfig_VxlanEmitsNoRouterOption(t *testing.T) {
-	conf := newConf(t, "192.168.1.0/29")
-	conf.DefaultGateway = nil
-
-	path, _, _ := GenerateConfig(conf)
-	content, _ := os.ReadFile(path)
-
-	if !strings.Contains(string(content), "dhcp-option=121,") {
-		t.Fatalf("dhcp-option=121 attendue pour un subnet vxlan :\n%s", content)
-	}
-	if strings.Contains(string(content), "dhcp-option=3,") {
-		t.Errorf("un subnet vxlan est privé : aucune route par défaut ne doit être émise\n%s", content)
-	}
-}
-
 func TestGenerateConfig_ContainsVPCRoute(t *testing.T) {
 	conf := newConf(t, "192.168.1.0/29")
 	path, _, _ := GenerateConfig(conf)
diff --git a/internal/dhcp/generate.go b/internal/dhcp/generate.go
index 40250f6..2b6c72f 100644
--- a/internal/dhcp/generate.go
+++ b/internal/dhcp/generate.go
@@ -19,8 +19,6 @@ func GenerateConfig(c Config) (string, map[string]string, error) {
 	}
 	if c.DefaultGateway != nil {
 		fmt.Fprintf(&sb, "dhcp-option=3,%s\n", c.DefaultGateway.String())
-	} else {
-		fmt.Fprintf(&sb, "dhcp-option=3\n")
 	}
 	fmt.Fprintf(&sb, "dhcp-option=6,1.1.1.1,8.8.8.8\n\n")
 
diff --git a/internal/dhcp/struct.go b/internal/dhcp/struct.go
index bacb1e0..bf6ace9 100644
--- a/internal/dhcp/struct.go
+++ b/internal/dhcp/struct.go
@@ -10,7 +10,7 @@ type Config struct {
 	Network        *net.IPNet
 	VPCGateway     net.IP     // next-hop for VPCRoute (option 121)
 	VPCRoute       *net.IPNet // if non-nil, emit dhcp-option=121,VPCRoute,VPCGateway
-	DefaultGateway net.IP     // if non-nil, emit dhcp-option=3,DefaultGateway; if nil, emit a bare dhcp-option=3 to suppress the dnsmasq default
+	DefaultGateway net.IP     // if non-nil, emit dhcp-option=3,DefaultGateway
 	Name           string
 	ConfDir        string
 }