diff --git a/extent_writer_unittest.cc b/extent_writer_unittest.cc
index 55cbff6..f0f5f7a 100644
--- a/extent_writer_unittest.cc
+++ b/extent_writer_unittest.cc
@@ -40,7 +40,7 @@
   }
   int fd() { return fd_; }
   const char* path() { return path_; }
-
+  
   // Writes data to an extent writer in 'chunk_size' chunks with
   // the first chunk of size first_chunk_size. It calculates what the
   // resultant file should look like and ensure that the extent writer