diff --git a/server/dao/comment.go b/server/dao/comment.go
index fbae3b5..311fa46 100644
--- a/server/dao/comment.go
+++ b/server/dao/comment.go
@@ -179,8 +179,10 @@ func DeleteCommentByID(commentID uint) error {
 		if err := tx.Model(&model.User{}).Where("id = ?", comment.UserID).Update("comments_count", gorm.Expr("comments_count - 1")).Error; err != nil {
 			return err
 		}
-		if err := tx.Model(&model.Resource{}).Where("id = ?", comment.RefID).Update("comments", gorm.Expr("comments - 1")).Error; err != nil {
-			return err
+		if comment.Type == model.CommentTypeResource {
+			if err := tx.Model(&model.Resource{}).Where("id = ?", comment.RefID).Update("comments", gorm.Expr("comments - 1")).Error; err != nil {
+				return err
+			}
 		}
 		if err := tx.
 			Where("type = ? and ref_id = ?", model.ActivityTypeNewComment, commentID).