diff --git a/models/issue.go b/models/issue.go
index 20af154b36b..27f6ba0bcab 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -1446,7 +1446,7 @@ func getParticipantsByIssueID(e Engine, issueID int64) ([]*User, error) {
 	userIDs := make([]int64, 0, 5)
 	if err := e.Table("comment").Cols("poster_id").
 		Where("`comment`.issue_id = ?", issueID).
-		And("`comment`.type = ?", CommentTypeComment).
+		And("`comment`.type in (?,?,?)", CommentTypeComment, CommentTypeCode, CommentTypeReview).
 		And("`user`.is_active = ?", true).
 		And("`user`.prohibit_login = ?", false).
 		Join("INNER", "`user`", "`user`.id = `comment`.poster_id").
diff --git a/routers/repo/issue.go b/routers/repo/issue.go
index 12c38b86208..583ca51a161 100644
--- a/routers/repo/issue.go
+++ b/routers/repo/issue.go
@@ -805,17 +805,7 @@ func ViewIssue(ctx *context.Context) {
 				return
 			}
 			marked[comment.PosterID] = comment.ShowTag
-
-			isAdded := false
-			for j := range participants {
-				if comment.Poster == participants[j] {
-					isAdded = true
-					break
-				}
-			}
-			if !isAdded && !issue.IsPoster(comment.Poster.ID) {
-				participants = append(participants, comment.Poster)
-			}
+			participants = addParticipant(comment.Poster, participants)
 		} else if comment.Type == models.CommentTypeLabel {
 			if err = comment.LoadLabel(); err != nil {
 				ctx.ServerError("LoadLabel", err)
@@ -851,6 +841,7 @@ func ViewIssue(ctx *context.Context) {
 				ctx.ServerError("LoadReview", err)
 				return
 			}
+			participants = addParticipant(comment.Poster, participants)
 			if comment.Review == nil {
 				continue
 			}
@@ -1573,3 +1564,12 @@ func ChangeCommentReaction(ctx *context.Context, form auth.ReactionForm) {
 		"html": html,
 	})
 }
+
+func addParticipant(poster *models.User, participants []*models.User) []*models.User {
+	for _, part := range participants {
+		if poster.ID == part.ID {
+			return participants
+		}
+	}
+	return append(participants, poster)
+}