diff --git a/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs b/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
index e479cfd0d7..56a6bf3682 100644
--- a/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
+++ b/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
@@ -39,7 +39,7 @@ namespace Volo.Blogging.Posts
         public async Task<ListResultDto<PostWithDetailsDto>> GetListByBlogIdAndTagName(Guid id, string tagName)
         {
             var posts = _postRepository.GetPostsByBlogId(id);
-            var tag = tagName.IsNullOrWhiteSpace() ? null : await _tagRepository.GetByNameAsync(tagName);
+            var tag = tagName.IsNullOrWhiteSpace() ? null : await _tagRepository.FindByNameAsync(tagName);
             var userDictionary = new Dictionary<Guid, BlogUserDto>();
             var postDtos = new List<PostWithDetailsDto>(ObjectMapper.Map<List<Post>, List<PostWithDetailsDto>>(posts));