diff --git a/include/dwarfs/segmenter.h b/include/dwarfs/segmenter.h
index a609913e..7c22fe39 100644
--- a/include/dwarfs/segmenter.h
+++ b/include/dwarfs/segmenter.h
@@ -22,11 +22,10 @@
 #pragma once
 
 #include <cstddef>
+#include <functional>
 #include <memory>
 #include <vector>
 
-#include <folly/Function.h>
-
 namespace dwarfs {
 
 class block_data;
@@ -48,8 +47,8 @@ class segmenter {
     unsigned block_size_bits{22};
   };
 
-  using block_ready_cb = folly::Function<void(std::shared_ptr<block_data>,
-                                              size_t logical_block_num)>;
+  using block_ready_cb = std::function<void(std::shared_ptr<block_data>,
+                                            size_t logical_block_num)>;
 
   segmenter(logger& lgr, progress& prog, std::shared_ptr<block_manager> blkmgr,
             config const& cfg, compression_constraints const& cc,