diff --git a/lib/config-win32.h b/lib/config-win32.h
index e9a371212f..49040c2add 100644
--- a/lib/config-win32.h
+++ b/lib/config-win32.h
@@ -228,6 +228,12 @@
    This is present in OpenSSL versions after 0.9.6b */
 #define HAVE_CRYPTO_CLEANUP_ALL_EX_DATA 1
 
+/* Define if you have the 'DES_set_odd_parity' function when using OpenSSL/
+   BoringSSL */
+#if defined(USE_OPENSSL) || defined(HAVE_BORINGSSL)
+#define HAVE_DES_SET_ODD_PARITY 1
+#endif
+
 /* Define if you have the select function. */
 #define HAVE_SELECT 1