diff --git a/ChangeLog b/ChangeLog
index e9826db20c..6cd56f68a3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Sep 13 18:11:55 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (try_do): fix typo.  a patch from Peter Weldon
+	  at [ruby-core:32327].
+
 Mon Sep 13 10:12:09 2010  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* util.c (ruby_strtod): reject Float('0x0.').
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 5e347a7dbc..e0b665a2f2 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -362,7 +362,7 @@ end
 def try_do(src, command, &b)
   unless have_devel?
     raise <<MSG
-The complier failed to generate an executable file.
+The compiler failed to generate an executable file.
 You have to install development tools first.
 MSG
   end