diff --git a/COPYING b/COPYING
index 6377dc8..406cbe2 100644
--- a/COPYING
+++ b/COPYING
@@ -1,7 +1,7 @@
 The MIT License
 
 Copyright (c) 1990 Jorge Nocedal
-Copyright (c) 2007-2009 Naoaki Okazaki
+Copyright (c) 2007-2010 Naoaki Okazaki
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),
diff --git a/README b/README
index c896497..b4ce951 100644
--- a/README
+++ b/README
@@ -2,7 +2,7 @@
            libLBFGS: C library of limited-memory BFGS (L-BFGS)
 
                                        Copyright (c) 1990, Jorge Nocedal
-                                 Copyright (c) 2007-2009, Naoaki Okazaki
+                                 Copyright (c) 2007-2010, Naoaki Okazaki
 
 =========================================================================
 1. Introduction
diff --git a/lib/lbfgs.c b/lib/lbfgs.c
index dc065e8..7e59c2d 100644
--- a/lib/lbfgs.c
+++ b/lib/lbfgs.c
@@ -312,7 +312,7 @@ int lbfgs(
     if (param.ftol < 0.) {
         return LBFGSERR_INVALID_FTOL;
     }
-    if (param.linesearch == LBFGS_LINESEARCH_BACKTRACKING_WOLFE &&
+    if (param.linesearch == LBFGS_LINESEARCH_BACKTRACKING_WOLFE ||
         param.linesearch == LBFGS_LINESEARCH_BACKTRACKING_STRONG_WOLFE) {
         if (param.wolfe <= param.ftol || 1. <= param.wolfe) {
             return LBFGSERR_INVALID_WOLFE;