diff --git a/extent_writer.h b/extent_writer.h
index 5eda364..1bb6f4a 100644
--- a/extent_writer.h
+++ b/extent_writer.h
@@ -66,7 +66,7 @@
 
  private:
   int fd_;
-  
+
   size_t block_size_;
   // Bytes written into next_extent_index_ thus far
   uint64_t extent_bytes_written_;