diff --git a/ChangeLog b/ChangeLog
index 19471a55e4..23e1b492f2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Jan 19 23:56:20 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (name_err_mesg_to_str): inverted condition for result of
+	  inspection.  [ruby-dev:22628]
+
 Mon Jan 19 22:24:28 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 	* sample/exyacc.rb: escape '}' to avoid warning.
diff --git a/error.c b/error.c
index 909e4422a7..50ff98f5ec 100644
--- a/error.c
+++ b/error.c
@@ -720,7 +720,7 @@ name_err_mesg_to_str(obj)
 	    break;
 	  default:
 	    d = rb_protect(rb_inspect, obj, 0);
-	    if (!NIL_P(d) || RSTRING(d)->len > 65) {
+	    if (NIL_P(d) || RSTRING(d)->len > 65) {
 		d = rb_any_to_s(obj);
 	    }
 	    desc = RSTRING(d)->ptr;