diff --git a/ChangeLog b/ChangeLog
index 4281df42bb..cbe6692b6b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Mar 21 06:44:59 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* rational.c (nurat_to_f): C99.
+
 Fri Mar 21 01:40:27 2008  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* complex.c (nucomp_sub, nucomp_expt): call corresponding functions.
diff --git a/rational.c b/rational.c
index 066a73d4bf..ccf214c32a 100644
--- a/rational.c
+++ b/rational.c
@@ -1102,12 +1102,12 @@ i_ilog2(VALUE x)
 static VALUE
 nurat_to_f(VALUE self)
 {
-  get_dat1(self);
   VALUE num, den;
   int minus = 0;
   long nl, dl, ml, ne, de;
   int e;
   double f;
+  get_dat1(self);
 
   if (f_zero_p(dat->num))
     return rb_float_new(0.0);