diff --git a/doc/ChangeLog-1.8.0 b/doc/ChangeLog-1.8.0
index 0d00266735..3f7d6bfb3c 100644
--- a/doc/ChangeLog-1.8.0
+++ b/doc/ChangeLog-1.8.0
@@ -21236,7 +21236,7 @@ Sun Jan  3 01:37:58 1999  Takao KAWAMURA  <kawamura@ike.tottori-u.ac.jp>
 Sat Jan  2 17:09:06 1999  Yukihiro Matsumoto  <matz@netlab.co.jp>
 
 	* eval.c (rb_jump_tag): new api to invoke JUMP_TAG.  tag values
-	  can obtained from rb_eval_string_protect()/rb_load_protect().
+	  can be obtained from rb_eval_string_protect()/rb_load_protect().
 
 	* eval.c (rb_rescue): now catches all exceptions but SystemExit.
 
diff --git a/doc/ChangeLog-2.1.0 b/doc/ChangeLog-2.1.0
index f80b2d6bd1..76edfd3ce7 100644
--- a/doc/ChangeLog-2.1.0
+++ b/doc/ChangeLog-2.1.0
@@ -2948,7 +2948,7 @@ Tue Nov  5 03:31:23 2013  Koichi Sasada  <ko1@atdot.net>
 	  Young objects will be promoted to old objects after one GC.
 	  Old objects are not collect until major (full) GC.
 
-	  The issue of this approach is some objects can promoted as old
+	  The issue of this approach is some objects can promote as old
 	  objects accidentally and not freed until major GC.
 	  Major GC is not frequently so short-lived but accidentally becoming
 	  old objects are not freed.