diff --git a/ChangeLog b/ChangeLog
index 1db4ae77df..a23a17aa89 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,13 @@ Tue Feb 10 19:40:58 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* eval.c (search_required): ditto.
 
+Wed Feb 11 23:37:35 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.c (VpMidRound): Round method bug
+	  pointed by Ryan Platte fixed(Patch to the patch from "NATORI
+	  Shin").  [ruby-talk:273360]
+	  back ported from 1.9. fix [ruby-core:19791]
+
 Mon Feb  9 17:35:38 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* win32/win32.c (rb_w32_accept): secure fd before accept because if
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 636c0907d6..7400b313a4 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -4345,6 +4345,11 @@ VpMidRound(Real *y, int f, int nf)
     nf += y->exponent*((int)BASE_FIG);
     exptoadd=0;
     if (nf < 0) {
+	/* rounding position too left(large). */
+	if((f!=VP_ROUND_CEIL) && (f!=VP_ROUND_FLOOR)) {
+	    VpSetZero(y,VpGetSign(y)); /* truncate everything */
+	    return 0;
+	}
         exptoadd = -nf;
         nf = 0;
     }
diff --git a/version.h b/version.h
index 700af17ad4..1be62202a6 100644
--- a/version.h
+++ b/version.h
@@ -1,15 +1,15 @@
 #define RUBY_VERSION "1.8.7"
-#define RUBY_RELEASE_DATE "2009-02-10"
+#define RUBY_RELEASE_DATE "2009-02-11"
 #define RUBY_VERSION_CODE 187
-#define RUBY_RELEASE_CODE 20090210
-#define RUBY_PATCHLEVEL 113
+#define RUBY_RELEASE_CODE 20090211
+#define RUBY_PATCHLEVEL 114
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8
 #define RUBY_VERSION_TEENY 7
 #define RUBY_RELEASE_YEAR 2009
 #define RUBY_RELEASE_MONTH 2
-#define RUBY_RELEASE_DAY 10
+#define RUBY_RELEASE_DAY 11
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];