diff --git a/ChangeLog b/ChangeLog
index 01964caed1..fa72b176e2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jan  5 20:20:36 2007  Koichi Sasada  <ko1@atdot.net>
+
+	* common.mk : add .SUFFIXES rule
+
 Fri Jan  5 15:58:15 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* eval_method.h (rb_alias) : fix to check search result
diff --git a/common.mk b/common.mk
index cacb7e0108..7ce6bd9779 100644
--- a/common.mk
+++ b/common.mk
@@ -2,6 +2,8 @@ bin: $(PROGRAM) $(WPROGRAM)
 lib: $(LIBRUBY)
 dll: $(LIBRUBY_SO)
 
+.SUFFIXES: .inc
+
 RUBYOPT       =
 
 STATIC_RUBY   = static-ruby