diff --git a/src/cmd/go/internal/modconv/glide.go b/src/cmd/go/internal/modconv/glide.go
index 3bc675fcc0..18ab57814d 100644
--- a/src/cmd/go/internal/modconv/glide.go
+++ b/src/cmd/go/internal/modconv/glide.go
@@ -15,8 +15,7 @@ func ParseGlideLock(file string, data []byte) (*modfile.File, error) {
 	mf := new(modfile.File)
 	imports := false
 	name := ""
-	for lineno, line := range strings.Split(string(data), "\n") {
-		lineno++
+	for _, line := range strings.Split(string(data), "\n") {
 		if line == "" {
 			continue
 		}
diff --git a/src/cmd/go/internal/modconv/glock.go b/src/cmd/go/internal/modconv/glock.go
index 1b786a939c..164a8e70d9 100644
--- a/src/cmd/go/internal/modconv/glock.go
+++ b/src/cmd/go/internal/modconv/glock.go
@@ -13,8 +13,7 @@ import (
 
 func ParseGLOCKFILE(file string, data []byte) (*modfile.File, error) {
 	mf := new(modfile.File)
-	for lineno, line := range strings.Split(string(data), "\n") {
-		lineno++
+	for _, line := range strings.Split(string(data), "\n") {
 		f := strings.Fields(line)
 		if len(f) >= 2 && f[0] != "cmd" {
 			mf.Require = append(mf.Require, &modfile.Require{Mod: module.Version{Path: f[0], Version: f[1]}})
diff --git a/src/cmd/go/internal/modconv/tsv.go b/src/cmd/go/internal/modconv/tsv.go
index feba181e05..106cddedd3 100644
--- a/src/cmd/go/internal/modconv/tsv.go
+++ b/src/cmd/go/internal/modconv/tsv.go
@@ -13,8 +13,7 @@ import (
 
 func ParseDependenciesTSV(file string, data []byte) (*modfile.File, error) {
 	mf := new(modfile.File)
-	for lineno, line := range strings.Split(string(data), "\n") {
-		lineno++
+	for _, line := range strings.Split(string(data), "\n") {
 		f := strings.Split(line, "\t")
 		if len(f) >= 3 {
 			mf.Require = append(mf.Require, &modfile.Require{Mod: module.Version{Path: f[0], Version: f[2]}})
diff --git a/src/cmd/go/internal/modconv/vconf.go b/src/cmd/go/internal/modconv/vconf.go
index a9a8e62518..f62eba7762 100644
--- a/src/cmd/go/internal/modconv/vconf.go
+++ b/src/cmd/go/internal/modconv/vconf.go
@@ -13,8 +13,7 @@ import (
 
 func ParseVendorConf(file string, data []byte) (*modfile.File, error) {
 	mf := new(modfile.File)
-	for lineno, line := range strings.Split(string(data), "\n") {
-		lineno++
+	for _, line := range strings.Split(string(data), "\n") {
 		if i := strings.Index(line, "#"); i >= 0 {
 			line = line[:i]
 		}
diff --git a/src/cmd/go/internal/modconv/vyml.go b/src/cmd/go/internal/modconv/vyml.go
index 0f017a3c7a..8a06519932 100644
--- a/src/cmd/go/internal/modconv/vyml.go
+++ b/src/cmd/go/internal/modconv/vyml.go
@@ -15,8 +15,7 @@ func ParseVendorYML(file string, data []byte) (*modfile.File, error) {
 	mf := new(modfile.File)
 	vendors := false
 	path := ""
-	for lineno, line := range strings.Split(string(data), "\n") {
-		lineno++
+	for _, line := range strings.Split(string(data), "\n") {
 		if line == "" {
 			continue
 		}