diff --git a/ChangeLog b/ChangeLog
index 76f21ab784..4281df42bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Mar 21 01:40:27 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* complex.c (nucomp_sub, nucomp_expt): call corresponding functions.
+
 Fri Mar 21 01:21:43 2008  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* missing/tgamma.c: include config.h before math.h.  [ruby-dev:34075]
diff --git a/complex.c b/complex.c
index 6953428418..cdbd214d8a 100644
--- a/complex.c
+++ b/complex.c
@@ -753,7 +753,7 @@ nucomp_sub(VALUE self, VALUE other)
   default:
     {
       VALUE a = f_coerce(other, self);
-      return f_add(RARRAY_PTR(a)[0], RARRAY_PTR(a)[1]);
+      return f_sub(RARRAY_PTR(a)[0], RARRAY_PTR(a)[1]);
     }
   }
 }
@@ -909,7 +909,7 @@ nucomp_expt(VALUE self, VALUE other)
   default:
     {
       VALUE a = f_coerce(other, self);
-      return f_div(RARRAY_PTR(a)[0], RARRAY_PTR(a)[1]);
+      return f_expt(RARRAY_PTR(a)[0], RARRAY_PTR(a)[1]);
     }
   }
 }
diff --git a/version.h b/version.h
index ec659f21e3..041cfa3128 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2008-03-20"
+#define RUBY_RELEASE_DATE "2008-03-21"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20080320
+#define RUBY_RELEASE_CODE 20080321
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2008
 #define RUBY_RELEASE_MONTH 3
-#define RUBY_RELEASE_DAY 20
+#define RUBY_RELEASE_DAY 21
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];