diff --git a/ChangeLog b/ChangeLog
index fe755604ae..f44ddf3d19 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,7 @@
 Tue May 21 16:29:09 2013  Koichi Sasada  <ko1@atdot.net>
 
 	* common.mk (rdoc-bench): add a benchmark rule
-	  using RDoc. Generate all rdoc related files 
+	  using RDoc. Generate all rdoc related files
 	  (same as `make rdoc') in temporary directory
 	  and remove them. Excecution time, GC::Profiler
 	  and results of GC.stat are printed.