diff --git a/hugolib/hugo_sites_build_test.go b/hugolib/hugo_sites_build_test.go
index b925b323d..5f3d1b9c0 100644
--- a/hugolib/hugo_sites_build_test.go
+++ b/hugolib/hugo_sites_build_test.go
@@ -9,6 +9,7 @@ import (
 	"html/template"
 	"os"
 	"path/filepath"
+	"time"
 
 	"github.com/fortytw2/leaktest"
 	"github.com/fsnotify/fsnotify"
@@ -391,7 +392,7 @@ func doTestMultiSitesBuild(t *testing.T, configTemplate, configSuffix string) {
 
 func TestMultiSitesRebuild(t *testing.T) {
 	// t.Parallel() not supported, see https://github.com/fortytw2/leaktest/issues/4
-	defer leaktest.Check(t)()
+	defer leaktest.CheckTimeout(t, 10*time.Second)()
 
 	siteConfig := testSiteConfig{Fs: afero.NewMemMapFs(), DefaultContentLanguage: "fr", DefaultContentLanguageInSubdir: true}
 	sites := createMultiTestSites(t, siteConfig, multiSiteTOMLConfigTemplate)