diff --git a/src/fuse_readdir_cosr.cpp b/src/fuse_readdir_cosr.cpp
index 264449c6..bc849753 100644
--- a/src/fuse_readdir_cosr.cpp
+++ b/src/fuse_readdir_cosr.cpp
@@ -72,9 +72,9 @@ _readdir(ThreadPool          &tp_,
 // }
 
 int
-FUSE::ReadDirCOSR::operator()(const fuse_req_ctx_t   *ctx_,
-                              fuse_file_info_t const *ffi_,
-                              fuse_dirents_t         *dirents_)
+FUSE::ReadDirCOSR::readdir(const fuse_req_ctx_t   *ctx_,
+                           fuse_file_info_t const *ffi_,
+                           fuse_dirents_t         *dirents_)
 {
   DirInfo *di = DirInfo::from_fh(ffi_->fh);