diff --git a/ChangeLog b/ChangeLog
index d2986387e2..dac30e74cb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jul 23 17:04:22 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/openssl/openssl_missing.h (d2i_of_void): define for older
+	  versions.  [ruby-dev:35637]
+
 Wed Jul 23 13:53:36 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/curses/extconf.rb: use try_static_assert.
diff --git a/ext/openssl/openssl_missing.h b/ext/openssl/openssl_missing.h
index f492b9efae..3061a322d1 100644
--- a/ext/openssl/openssl_missing.h
+++ b/ext/openssl/openssl_missing.h
@@ -15,6 +15,10 @@
 extern "C" {
 #endif
 
+#ifndef TYPEDEF_D2I_OF
+typedef char *d2i_of_void();
+#endif
+
 /*
  * These functions are not included in headers of OPENSSL <= 0.9.6b
  */