diff --git a/modules/markup/file_preview.go b/modules/markup/file_preview.go
index be788aae4b..167bbd1997 100644
--- a/modules/markup/file_preview.go
+++ b/modules/markup/file_preview.go
@@ -149,7 +149,6 @@ func (p *FilePreview) CreateHTML(locale translation.Locale) *html.Node {
 			Type: html.ElementNode,
 			Data: atom.Td.String(),
 			Attr: []html.Attribute{
-				{Key: "id", Val: "L" + lineNum},
 				{Key: "class", Val: "lines-num"},
 			},
 		}
@@ -157,7 +156,6 @@ func (p *FilePreview) CreateHTML(locale translation.Locale) *html.Node {
 			Type: html.ElementNode,
 			Data: atom.Span.String(),
 			Attr: []html.Attribute{
-				{Key: "id", Val: "L" + lineNum},
 				{Key: "data-line-number", Val: lineNum},
 			},
 		}
@@ -200,7 +198,6 @@ func (p *FilePreview) CreateHTML(locale translation.Locale) *html.Node {
 			Type: html.ElementNode,
 			Data: atom.Td.String(),
 			Attr: []html.Attribute{
-				{Key: "rel", Val: "L" + lineNum},
 				{Key: "class", Val: "lines-code chroma"},
 			},
 		}
diff --git a/modules/markup/sanitizer.go b/modules/markup/sanitizer.go
index 73e17060a7..c37027b843 100644
--- a/modules/markup/sanitizer.go
+++ b/modules/markup/sanitizer.go
@@ -128,7 +128,6 @@ func createDefaultPolicy() *bluemonday.Policy {
 	policy.AllowAttrs("class").Matching(regexp.MustCompile("^header$")).OnElements("div")
 	policy.AllowAttrs("data-line-number").Matching(regexp.MustCompile("^[0-9]+$")).OnElements("span")
 	policy.AllowAttrs("class").Matching(regexp.MustCompile("^text small grey$")).OnElements("span")
-	policy.AllowAttrs("rel").Matching(regexp.MustCompile("^L[0-9]+$")).OnElements("td")
 	policy.AllowAttrs("class").Matching(regexp.MustCompile("^file-preview*")).OnElements("table")
 	policy.AllowAttrs("class").Matching(regexp.MustCompile("^lines-escape$")).OnElements("td")
 	policy.AllowAttrs("class").Matching(regexp.MustCompile("^toggle-escape-button btn interact-bg$")).OnElements("button")