diff --git a/ChangeLog b/ChangeLog
index 6a60c13d32..73e5ba95bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Oct 24 20:54:53 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (exts): renamed to get rid of the existent directory.
+
 Fri Oct 24 20:45:41 2008  Keiju Ishitsuka  <keiju@ruby-lang.org>
 
 	* ext/mathn/rational.c: change several global functions to static
diff --git a/common.mk b/common.mk
index af7fd1bc9b..39d9ce8302 100644
--- a/common.mk
+++ b/common.mk
@@ -120,8 +120,8 @@ COMPILE_PRELUDE = $(MINIRUBY) -I$(srcdir) -rrbconfig $(srcdir)/tool/compile_prel
 
 VCS           = svn
 
-all: encs ext
-ext: $(MKFILES) incs $(PREP) $(RBCONFIG) $(LIBRUBY)
+all: encs exts
+exts: $(MKFILES) incs $(PREP) $(RBCONFIG) $(LIBRUBY)
 	@$(MINIRUBY) $(srcdir)/ext/extmk.rb --make="$(MAKE)" $(EXTMK_ARGS)
 prog: $(PROGRAM) $(WPROGRAM)