diff --git a/hugolib/config.go b/hugolib/config.go
index 32fa2dfca71..ec7deb2de20 100644
--- a/hugolib/config.go
+++ b/hugolib/config.go
@@ -346,12 +346,12 @@ func applyThemeConfig(v1 *viper.Viper, theme paths.ThemeConfig) error {
 	// Only add params and new menu entries, we do not add language definitions.
 	if v1.IsSet(languagesKey) && v2.IsSet(languagesKey) {
 		v1Langs := v1.GetStringMap(languagesKey)
-		for k, _ := range v1Langs {
+		for k := range v1Langs {
 			langParamsKey := languagesKey + "." + k + "." + paramsKey
 			mergeStringMapKeepLeft(paramsKey, langParamsKey, v1, v2)
 		}
 		v2Langs := v2.GetStringMap(languagesKey)
-		for k, _ := range v2Langs {
+		for k := range v2Langs {
 			if k == "" {
 				continue
 			}
diff --git a/hugolib/pagemeta/page_frontmatter.go b/hugolib/pagemeta/page_frontmatter.go
index f75613e8022..b67ffbc05a0 100644
--- a/hugolib/pagemeta/page_frontmatter.go
+++ b/hugolib/pagemeta/page_frontmatter.go
@@ -71,10 +71,10 @@ type FrontMatterDescriptor struct {
 
 var (
 	dateFieldAliases = map[string][]string{
-		fmDate:       []string{},
-		fmLastmod:    []string{"modified"},
-		fmPubDate:    []string{"pubdate", "published"},
-		fmExpiryDate: []string{"unpublishdate"},
+		fmDate:       {},
+		fmLastmod:    {"modified"},
+		fmPubDate:    {"pubdate", "published"},
+		fmExpiryDate: {"unpublishdate"},
 	}
 )
 
diff --git a/hugolib/site_output.go b/hugolib/site_output.go
index 0e0fe76a7ec..0a751396147 100644
--- a/hugolib/site_output.go
+++ b/hugolib/site_output.go
@@ -28,16 +28,16 @@ func createDefaultOutputFormats(allFormats output.Formats, cfg config.Provider)
 	sitemapOut, _ := allFormats.GetByName(output.SitemapFormat.Name)
 
 	return map[string]output.Formats{
-		KindPage:         output.Formats{htmlOut},
-		KindHome:         output.Formats{htmlOut, rssOut},
-		KindSection:      output.Formats{htmlOut, rssOut},
-		KindTaxonomy:     output.Formats{htmlOut, rssOut},
-		KindTaxonomyTerm: output.Formats{htmlOut, rssOut},
+		KindPage:         {htmlOut},
+		KindHome:         {htmlOut, rssOut},
+		KindSection:      {htmlOut, rssOut},
+		KindTaxonomy:     {htmlOut, rssOut},
+		KindTaxonomyTerm: {htmlOut, rssOut},
 		// Below are for conistency. They are currently not used during rendering.
-		kindRSS:       output.Formats{rssOut},
-		kindSitemap:   output.Formats{sitemapOut},
-		kindRobotsTXT: output.Formats{robotsOut},
-		kind404:       output.Formats{htmlOut},
+		kindRSS:       {rssOut},
+		kindSitemap:   {sitemapOut},
+		kindRobotsTXT: {robotsOut},
+		kind404:       {htmlOut},
 	}
 
 }
diff --git a/hugolib/testhelpers_test.go b/hugolib/testhelpers_test.go
index d37d83ed351..469cfeb4a8e 100644
--- a/hugolib/testhelpers_test.go
+++ b/hugolib/testhelpers_test.go
@@ -31,8 +31,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-const ()
-
 type sitesBuilder struct {
 	Cfg config.Provider
 	Fs  *hugofs.Fs
diff --git a/tpl/collections/collections_test.go b/tpl/collections/collections_test.go
index b3ac8a8f2bd..0edb8299f3a 100644
--- a/tpl/collections/collections_test.go
+++ b/tpl/collections/collections_test.go
@@ -100,16 +100,16 @@ func TestGroup(t *testing.T) {
 		items  interface{}
 		expect interface{}
 	}{
-		{"a", []*tstGrouper{&tstGrouper{}, &tstGrouper{}}, "a(2)"},
+		{"a", []*tstGrouper{{}, {}}, "a(2)"},
 		{"b", tstGroupers{&tstGrouper{}, &tstGrouper{}}, "b(2)"},
-		{"a", []tstGrouper{tstGrouper{}, tstGrouper{}}, "a(2)"},
-		{"a", []*tstGrouper2{&tstGrouper2{}, &tstGrouper2{}}, "a(2)"},
-		{"b", []tstGrouper2{tstGrouper2{}, tstGrouper2{}}, "b(2)"},
+		{"a", []tstGrouper{{}, {}}, "a(2)"},
+		{"a", []*tstGrouper2{{}, {}}, "a(2)"},
+		{"b", []tstGrouper2{{}, {}}, "b(2)"},
 		{"a", []*tstGrouper{}, "a(0)"},
 		{"a", []string{"a", "b"}, false},
 		{"a", "asdf", false},
 		{"a", nil, false},
-		{nil, []*tstGrouper{&tstGrouper{}, &tstGrouper{}}, false},
+		{nil, []*tstGrouper{{}, {}}, false},
 	} {
 		errMsg := fmt.Sprintf("[%d] %v", i, test)
 
@@ -654,7 +654,7 @@ func TestSlice(t *testing.T) {
 		{[]interface{}{}, []interface{}{}},
 		{[]interface{}{nil}, []interface{}{nil}},
 		{[]interface{}{5, "b"}, []interface{}{5, "b"}},
-		{[]interface{}{tstNoStringer{}}, []tstNoStringer{tstNoStringer{}}},
+		{[]interface{}{tstNoStringer{}}, []tstNoStringer{{}}},
 	} {
 		errMsg := fmt.Sprintf("[%d] %v", i, test.args)
 
diff --git a/tpl/tplimpl/template.go b/tpl/tplimpl/template.go
index fc77bb1affa..8a26ce0e1f8 100644
--- a/tpl/tplimpl/template.go
+++ b/tpl/tplimpl/template.go
@@ -749,7 +749,7 @@ func (t *templateHandler) addTemplateFile(name, baseTemplatePath, path string) e
 }
 
 var embeddedTemplatesAliases = map[string][]string{
-	"shortcodes/twitter.html": []string{"shortcodes/tweet.html"},
+	"shortcodes/twitter.html": {"shortcodes/tweet.html"},
 }
 
 func (t *templateHandler) loadEmbedded() error {