diff --git a/ChangeLog b/ChangeLog
index fdfc835380..96b02d3b61 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Dec  1 22:01:49 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* numeric.c (Init_Numeric): fixed a potential bug when using bccwin32
+	  ruby with Microsoft's dll, though we already gave up of supporting
+	  bccwin32. [ruby-core:33503]
+
 Wed Dec  1 21:43:21 2010  Tanaka Akira  <akr@fsij.org>
 
 	* array.c: parenthesize macro arguments.
diff --git a/numeric.c b/numeric.c
index 43d08d011d..a2fab9b31b 100644
--- a/numeric.c
+++ b/numeric.c
@@ -3375,6 +3375,7 @@ Init_Numeric(void)
 #elif defined(__BORLANDC__)
     /* Turn off floating point exceptions for overflow, etc. */
     _control87(MCW_EM, MCW_EM);
+    _control87(_control87(0,0),0x1FFF);
 #endif
     id_coerce = rb_intern("coerce");
     id_to_i = rb_intern("to_i");