diff --git a/README.md b/README.md
index fb738303..6912dcb7 100644
--- a/README.md
+++ b/README.md
@@ -342,7 +342,7 @@ CVE-2016-5636           10.0 (High)     Integer overflow in the get_data functio
 View full report.
 
 ```
-$ vuls report -format-full-text
+$ vuls report -format-full-text | less
 
 localhost (amazon 2015.09)
 ============================
diff --git a/models/models.go b/models/models.go
index fe4211d2..277cea56 100644
--- a/models/models.go
+++ b/models/models.go
@@ -568,8 +568,8 @@ type Changelog struct {
 	Method   string
 }
 
-// ToStringCurrentVersion returns package name-version-release
-func (p PackageInfo) ToStringCurrentVersion() string {
+// FormatCurrentVer returns package name-version-release
+func (p PackageInfo) FormatCurrentVer() string {
 	str := p.Name
 	if 0 < len(p.Version) {
 		str = fmt.Sprintf("%s-%s", str, p.Version)
@@ -580,8 +580,8 @@ func (p PackageInfo) ToStringCurrentVersion() string {
 	return str
 }
 
-// ToStringNewVersion returns package name-version-release
-func (p PackageInfo) ToStringNewVersion() string {
+// FormatNewVer returns package name-version-release
+func (p PackageInfo) FormatNewVer() string {
 	str := p.Name
 	if 0 < len(p.NewVersion) {
 		str = fmt.Sprintf("%s-%s", str, p.NewVersion)
diff --git a/report/slack.go b/report/slack.go
index 434bc06b..fd9b5bf1 100644
--- a/report/slack.go
+++ b/report/slack.go
@@ -170,7 +170,7 @@ func toSlackAttachments(scanResult models.ScanResult) (attaches []*attachment) {
 
 		curentPackages := []string{}
 		for _, p := range cveInfo.Packages {
-			curentPackages = append(curentPackages, p.ToStringCurrentVersion())
+			curentPackages = append(curentPackages, p.FormatCurrentVer())
 		}
 		for _, n := range cveInfo.CpeNames {
 			curentPackages = append(curentPackages, n)
@@ -178,7 +178,7 @@ func toSlackAttachments(scanResult models.ScanResult) (attaches []*attachment) {
 
 		newPackages := []string{}
 		for _, p := range cveInfo.Packages {
-			newPackages = append(newPackages, p.ToStringNewVersion())
+			newPackages = append(newPackages, p.FormatNewVer())
 		}
 
 		a := attachment{
diff --git a/report/tui.go b/report/tui.go
index 1ee1de60..564c6154 100644
--- a/report/tui.go
+++ b/report/tui.go
@@ -799,8 +799,8 @@ func detailLines() (string, error) {
 		packages = append(packages,
 			fmt.Sprintf(
 				"%s -> %s",
-				pack.ToStringCurrentVersion(),
-				pack.ToStringNewVersion()))
+				pack.FormatCurrentVer(),
+				pack.FormatNewVer()))
 	}
 
 	data := dataForTmpl{
diff --git a/report/util.go b/report/util.go
index adf85f27..51ac589a 100644
--- a/report/util.go
+++ b/report/util.go
@@ -118,7 +118,7 @@ No CVE-IDs are found in updatable packages.
 		var packsVer string
 		for _, p := range d.Packages {
 			packsVer += fmt.Sprintf(
-				"%s -> %s\n", p.ToStringCurrentVersion(), p.ToStringNewVersion())
+				"%s -> %s\n", p.FormatCurrentVer(), p.FormatNewVer())
 		}
 		for _, n := range d.CpeNames {
 			packsVer += n
@@ -460,7 +460,7 @@ func addPackageInfos(table *uitable.Table, packs []models.PackageInfo) *uitable.
 			title = "Package"
 		}
 		ver := fmt.Sprintf(
-			"%s -> %s", p.ToStringCurrentVersion(), p.ToStringNewVersion())
+			"%s -> %s", p.FormatCurrentVer(), p.FormatNewVer())
 		table.AddRow(title, ver)
 	}
 	return table
@@ -501,7 +501,7 @@ func formatOneChangelog(p models.PackageInfo) string {
 	}
 
 	packVer := fmt.Sprintf("%s -> %s",
-		p.ToStringCurrentVersion(), p.ToStringNewVersion())
+		p.FormatCurrentVer(), p.FormatNewVer())
 	var delim bytes.Buffer
 	for i := 0; i < len(packVer); i++ {
 		delim.WriteString("-")