diff --git a/ChangeLog b/ChangeLog
index a513eb108b..82e2ee64a5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Feb  1 17:08:42 2010  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* numeric.c (flo_minus): RDoc update.  a patch from red stun
+	  in [ruby-core:27951]
+
 Mon Feb  1 07:36:33 2010  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/tkutil/tkutil.c: fix SEGV on TkUtil::CallbackSubst._setup_subst_table.
diff --git a/numeric.c b/numeric.c
index e021efc114..97659e455d 100644
--- a/numeric.c
+++ b/numeric.c
@@ -637,7 +637,7 @@ flo_plus(VALUE x, VALUE y)
 
 /*
  * call-seq:
- *   float + other  ->  float
+ *   float - other  ->  float
  *
  * Returns a new float which is the difference of <code>float</code>
  * and <code>other</code>.