diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 232e300..d012e0a 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2926,6 +2926,7 @@
 #endif
 	.copy_file_range = btrfs_copy_file_range,
 	.clone_file_range = btrfs_clone_file_range,
+	.dedupe_file_range = btrfs_dedupe_file_range,
 };
 
 void btrfs_auto_defrag_exit(void)