diff --git a/hugolib/hugo_sites_test.go b/hugolib/hugo_sites_test.go
index baaa0ce8f..b7a52b1e4 100644
--- a/hugolib/hugo_sites_test.go
+++ b/hugolib/hugo_sites_test.go
@@ -116,8 +116,8 @@ func doTestMultiSitesMainLangInRoot(t *testing.T, defaultInSubDir bool) {
 	// Sitemaps behaves different: In a multilanguage setup there will always be a index file and
 	// one sitemap in each lang folder.
 	assertFileContent(t, "public/sitemap.xml", true,
-		"<loc>http:/example.com/blog/en/sitemap.xml</loc>",
-		"<loc>http:/example.com/blog/fr/sitemap.xml</loc>")
+		"<loc>http://example.com/blog/en/sitemap.xml</loc>",
+		"<loc>http://example.com/blog/fr/sitemap.xml</loc>")
 
 	if defaultInSubDir {
 		assertFileContent(t, "public/fr/sitemap.xml", true, "<loc>http://example.com/blog/fr/</loc>")
@@ -313,8 +313,8 @@ func doTestMultiSitesBuild(t *testing.T, configTemplate, configSuffix string) {
 
 	// Check sitemap(s)
 	sitemapIndex := readDestination(t, "public/sitemap.xml")
-	require.True(t, strings.Contains(sitemapIndex, "<loc>http:/example.com/blog/en/sitemap.xml</loc>"), sitemapIndex)
-	require.True(t, strings.Contains(sitemapIndex, "<loc>http:/example.com/blog/fr/sitemap.xml</loc>"), sitemapIndex)
+	require.True(t, strings.Contains(sitemapIndex, "<loc>http://example.com/blog/en/sitemap.xml</loc>"), sitemapIndex)
+	require.True(t, strings.Contains(sitemapIndex, "<loc>http://example.com/blog/fr/sitemap.xml</loc>"), sitemapIndex)
 	sitemapEn := readDestination(t, "public/en/sitemap.xml")
 	sitemapFr := readDestination(t, "public/fr/sitemap.xml")
 	require.True(t, strings.Contains(sitemapEn, "http://example.com/blog/en/sect/doc2/"), sitemapEn)
diff --git a/hugolib/site.go b/hugolib/site.go
index 8066dbefc..5f02a2c7a 100644
--- a/hugolib/site.go
+++ b/hugolib/site.go
@@ -878,7 +878,12 @@ func (s *SiteInfo) HomeAbsURL() string {
 // SitemapAbsURL is a convenience method giving the absolute URL to the sitemap.
 func (s *SiteInfo) SitemapAbsURL() string {
 	sitemapDefault := parseSitemap(viper.GetStringMap("Sitemap"))
-	return path.Join(s.HomeAbsURL(), sitemapDefault.Filename)
+	p := s.HomeAbsURL()
+	if !strings.HasSuffix(p, "/") {
+		p += "/"
+	}
+	p += sitemapDefault.Filename
+	return p
 }
 
 func (s *Site) initializeSiteInfo() {