diff --git a/ChangeLog b/ChangeLog
index ff267517f3..4c3f022ff7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Oct  29 15:50:00 2008  TAKANO Mitsuhiro (takano32)  <tak@no32.tk>
+
+	* complex.c (imp1, imp2): should declare type.
+	  [BUG] at IA-64
+
 Wed Oct 29 14:36:50 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* common.mk (revision.h): have to be updated daily or by non-trivial
diff --git a/complex.c b/complex.c
index b4ac3e95e5..95a278e3ac 100644
--- a/complex.c
+++ b/complex.c
@@ -429,7 +429,7 @@ nucomp_f_complex(int argc, VALUE *argv, VALUE klass)
 #define imp1(n) \
 extern VALUE rb_math_##n(VALUE x);\
 inline static VALUE \
-m_##n##_bang(x)\
+m_##n##_bang(VALUE x)\
 {\
     return rb_math_##n(x);\
 }
@@ -437,7 +437,7 @@ m_##n##_bang(x)\
 #define imp2(n) \
 extern VALUE rb_math_##n(VALUE x, VALUE y);\
 inline static VALUE \
-m_##n##_bang(x, y)\
+m_##n##_bang(VALUE x, VALUE y)\
 {\
     return rb_math_##n(x, y);\
 }