diff --git a/lfs.h b/lfs.h
index 7757f8b9b4a..641521cf260 100644
--- a/lfs.h
+++ b/lfs.h
@@ -445,8 +445,5 @@ int lfs_traverse(lfs_t *lfs, int (*cb)(void*, lfs_block_t), void *data);
 // Returns a negative error code on failure.
 int lfs_deorphan(lfs_t *lfs);
 
-// TODO doc
-int lfs_deduplicate(lfs_t *lfs);
-
 
 #endif