diff --git a/.gdbinit b/.gdbinit
index c0a434ad10..1198ebace9 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -143,6 +143,14 @@ define rp
           ((struct RBignum*)$arg0)->as.ary : \
           ((struct RBignum*)$arg0)->as.heap.digits)
   else
+  if ($flags & RUBY_T_MASK) == RUBY_T_RATIONAL
+    printf "T_RATIONAL: "
+    rb_p $arg0
+  else
+  if ($flags & RUBY_T_MASK) == RUBY_T_COMPLEX
+    printf "T_COMPLEX: "
+    rb_p $arg0
+  else
   if ($flags & RUBY_T_MASK) == RUBY_T_FILE
     printf "T_FILE: "
     print (struct RFile *)$arg0
@@ -220,6 +228,8 @@ define rp
   end
   end
   end
+  end
+  end
 end
 document rp
   Print a Ruby's VALUE.
diff --git a/ChangeLog b/ChangeLog
index eed6ad6644..b6dfc05418 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Apr  2 06:52:31 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* .gdbinit (rp): supports rational and complex numbers.  it's
+	  cheating since it uses rb_p().
+
 Wed Apr  2 06:24:06 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* include/ruby/node.h: add new constants for rb_call()'s scope.