diff --git a/integration_test.go b/integration_test.go
index f91d6db..08e6286 100644
--- a/integration_test.go
+++ b/integration_test.go
@@ -6,6 +6,7 @@ import (
 	"context"
 	"encoding/json"
 	"net/http"
+	"os"
 	"testing"
 	"time"
 
@@ -67,11 +68,14 @@ func TestIntegrationWebhooksCRUD(t *testing.T) {
 		require.NoError(t, err)
 	}
 
+	domain := os.Getenv("MG_DOMAIN")
+	require.NotEmpty(t, domain)
+
 	const name = "permanent_fail"
 	ctx := context.Background()
 	urls := []string{"https://example.com/1", "https://example.com/2"}
 
-	err = mg.DeleteWebhook(ctx, name)
+	err = mg.DeleteWebhook(ctx, domain, name)
 	if err != nil {
 		// 200 or 404 is expected
 		status := mailgun.GetStatusFromErr(err)
@@ -81,18 +85,18 @@ func TestIntegrationWebhooksCRUD(t *testing.T) {
 
 	defer func() {
 		// Cleanup
-		_ = mg.DeleteWebhook(ctx, name)
+		_ = mg.DeleteWebhook(ctx, domain, name)
 	}()
 
 	// Act
 
-	err = mg.CreateWebhook(ctx, name, urls)
+	err = mg.CreateWebhook(ctx, domain, name, urls)
 	require.NoError(t, err)
 	time.Sleep(3 * time.Second)
 
 	// Assert
 
-	gotUrls, err := mg.GetWebhook(ctx, name)
+	gotUrls, err := mg.GetWebhook(ctx, domain, name)
 	require.NoError(t, err)
 	t.Logf("Webhooks: %v", urls)
 	assert.ElementsMatch(t, urls, gotUrls)