diff --git a/NEWS b/NEWS
index c4b05d816a..6aa44830c8 100644
--- a/NEWS
+++ b/NEWS
@@ -582,8 +582,8 @@ Fiber::
   * Allow selecting different coroutine implementation by using
     `--with-coroutine=`, e.g.
 
-         ./confgure --with-coroutine=ucontext
-         ./confgure --with-coroutine=copy
+         ./configure --with-coroutine=ucontext
+         ./configure --with-coroutine=copy
 
   * Replace previous stack cache with fiber pool cache. The fiber pool
     allocates many stacks in a single memory region. Stack allocation
diff --git a/doc/ChangeLog-1.8.0 b/doc/ChangeLog-1.8.0
index 3f7d6bfb3c..6d9453d011 100644
--- a/doc/ChangeLog-1.8.0
+++ b/doc/ChangeLog-1.8.0
@@ -13020,7 +13020,7 @@ Tue Jun 12 00:41:18 2001  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 Mon Jun 11 14:29:41 2001  WATANABE Hirofumi  <eban@ruby-lang.org>
 
-	* confgure.in: add RUBY_CANONICAL_BUILD.
+	* configure.in: add RUBY_CANONICAL_BUILD.
 
 Sun Jun 10 17:31:47 2001  Guy Decoux  <decoux@moulon.inra.fr>