diff --git a/ChangeLog b/ChangeLog
index 0a1b519c4f..a5fdc7024b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Apr 11 18:58:09 2008  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* process.c: new method Process.exec; backported from 1.9. bug#19006
+
 Fri Apr 11 12:43:56 2008  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tkextlib/tile.rb, ext/tk/lib/tkextlib/tile/style.rb, 
diff --git a/process.c b/process.c
index a3421f57c3..864c8168c0 100644
--- a/process.c
+++ b/process.c
@@ -3573,6 +3573,7 @@ Init_process()
 #endif
 #endif
 
+    rb_define_singleton_method(rb_mProcess, "exec", rb_f_exec, -1);
     rb_define_singleton_method(rb_mProcess, "fork", rb_f_fork, 0);
     rb_define_singleton_method(rb_mProcess, "exit!", rb_f_exit_bang, -1);
     rb_define_singleton_method(rb_mProcess, "exit", rb_f_exit, -1);   /* in eval.c */