diff --git a/ChangeLog b/ChangeLog
index dedb23ea34..684eb01a3a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Dec 15 04:02:00 2010  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* ext/openssl/ossl_x509ext.c (ossl_x509extfactory_set_config):
+	  fix compile error when !HAVE_X509V3_SET_NCONF. Thanks
+	  Chikanaga-san. [ruby-dev:42761] [Ruby 1.9-Bug#4158]
+
 Wed Dec 15 03:41:31 2010  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* test/ripper/test_parser_events.rb (TestRipper#test_block_variables):
diff --git a/ext/openssl/ossl_x509ext.c b/ext/openssl/ossl_x509ext.c
index 3e34608b4b..4d64602828 100644
--- a/ext/openssl/ossl_x509ext.c
+++ b/ext/openssl/ossl_x509ext.c
@@ -178,7 +178,7 @@ ossl_x509extfactory_set_config(VALUE self, VALUE config)
     return config;
 }
 #else
-#define rb_f_fork rb_f_notimplement
+#define ossl_x509extfactory_set_config rb_f_notimplement
 #endif
 
 static VALUE