diff --git a/ChangeLog b/ChangeLog
index 20b41934ae..6ff17fbbcb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jan 16 17:55:07 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* numeric.c (fix_quo): typo. a patch from Shin-ichiro HARA
+	  <sinara AT blade.nagaokaut.ac.jp> in [ruby-dev:33130]
+
 Wed Jan 16 17:36:26 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/test_delegate.rb: add new test file for delegate.rb.
diff --git a/numeric.c b/numeric.c
index 0ced2df339..f6376c3e18 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2187,7 +2187,7 @@ fix_quo(VALUE x, VALUE y)
     }
     switch (TYPE(y)) {
       case T_BIGNUM:
-	return DOUBLE2NUM((double)FIX2LONG(y) / rb_big2dbl(y));
+	return DOUBLE2NUM((double)FIX2LONG(x) / rb_big2dbl(y));
       case T_FLOAT:
 	return DOUBLE2NUM((double)FIX2LONG(x) / RFLOAT_VALUE(y));
       default: