diff --git a/ChangeLog b/ChangeLog
index 4a56a148bc..3f44ec30fa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Feb 19 01:28:56 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+
+	* bigdecimal/newton.rb: resolve LoadError.
+
+	* bigdecimal/nlsolve.rb: ditto.
+
 Thu Feb 17 22:15:34 2005  K.Kosako <sndgk@ybb.ne.jp>
 
 	* ext/strscan/strscan.c: calls Oniguruma API directly.
diff --git a/ext/bigdecimal/lib/bigdecimal/newton.rb b/ext/bigdecimal/lib/bigdecimal/newton.rb
index 67a92474ac..f88fabe5dc 100644
--- a/ext/bigdecimal/lib/bigdecimal/newton.rb
+++ b/ext/bigdecimal/lib/bigdecimal/newton.rb
@@ -20,8 +20,8 @@
 #         f.eps       convergence criterion
 #   x ... initial values
 #
-require "ludcmp"
-require "jacobian"
+require "bigdecimal/ludcmp"
+require "bigdecimal/jacobian"
 
 module Newton
   include LUSolve
diff --git a/ext/bigdecimal/lib/bigdecimal/nlsolve.rb b/ext/bigdecimal/lib/bigdecimal/nlsolve.rb
index 08f17f9ecd..7f729e6aaa 100644
--- a/ext/bigdecimal/lib/bigdecimal/nlsolve.rb
+++ b/ext/bigdecimal/lib/bigdecimal/nlsolve.rb
@@ -6,7 +6,7 @@
 #
 
 require "bigdecimal"
-require "newton"
+require "bigdecimal/newton"
 include Newton
 
 class Function