diff --git a/include/dwarfs/inode.h b/include/dwarfs/inode.h
index d02268f3..e482c0a7 100644
--- a/include/dwarfs/inode.h
+++ b/include/dwarfs/inode.h
@@ -60,7 +60,6 @@ class inode : public object {
   virtual size_t size() const = 0;
   virtual file const* any() const = 0;
   virtual files_vector const& files() const = 0;
-  virtual void add_chunk(size_t block, size_t offset, size_t size) = 0;
   virtual void
   append_chunks_to(std::vector<thrift::metadata::chunk>& vec) const = 0;
   virtual inode_fragments& fragments() = 0;
diff --git a/src/dwarfs/inode_manager.cpp b/src/dwarfs/inode_manager.cpp
index b3b9c464..2974cc87 100644
--- a/src/dwarfs/inode_manager.cpp
+++ b/src/dwarfs/inode_manager.cpp
@@ -192,12 +192,6 @@ class inode_ : public inode {
     }
   }
 
-  void add_chunk(size_t block, size_t offset, size_t size) override {
-    DWARFS_CHECK(fragments_.size() == 1,
-                 "exactly one fragment must be used in legacy add_chunk()");
-    fragments_.back().add_chunk(block, offset, size);
-  }
-
   size_t size() const override { return any()->size(); }
 
   files_vector const& files() const override { return files_; }