diff --git a/pkg/commands/patch/format.go b/pkg/commands/patch/format.go
index ccfc7924d..afd09df4b 100644
--- a/pkg/commands/patch/format.go
+++ b/pkg/commands/patch/format.go
@@ -97,7 +97,7 @@ func (self *patchPresenter) format() string {
 
 		for _, line := range hunk.bodyLines {
 			style := self.patchLineStyle(line)
-			if line.isChange() {
+			if line.IsChange() {
 				appendLine(self.formatLine(line.Content, style, lineIdx))
 			} else {
 				appendLine(self.formatLineAux(line.Content, style, false))
diff --git a/pkg/commands/patch/patch_line.go b/pkg/commands/patch/patch_line.go
index 994d7c4e9..78eef3a19 100644
--- a/pkg/commands/patch/patch_line.go
+++ b/pkg/commands/patch/patch_line.go
@@ -18,7 +18,7 @@ type PatchLine struct {
 	Content string // something like '+ hello' (note the first character is not removed)
 }
 
-func (self *PatchLine) isChange() bool {
+func (self *PatchLine) IsChange() bool {
 	return self.Kind == ADDITION || self.Kind == DELETION
 }