diff --git a/models/git_diff.go b/models/git_diff.go
index 07009ade7..006238cd0 100644
--- a/models/git_diff.go
+++ b/models/git_diff.go
@@ -252,7 +252,7 @@ func (diff *Diff) LoadComments(issue *Issue, currentUser *User) error {
 			for _, section := range file.Sections {
 				for _, line := range section.Lines {
 					if comments, ok := lineCommits[int64(line.LeftIdx*-1)]; ok {
-						line.Comments = comments
+						line.Comments = append(line.Comments, comments...)
 					}
 					if comments, ok := lineCommits[int64(line.RightIdx)]; ok {
 						line.Comments = append(line.Comments, comments...)