diff --git a/include/openssl/evp.h b/include/openssl/evp.h
index 398c741..faf160f 100644
--- a/include/openssl/evp.h
+++ b/include/openssl/evp.h
@@ -654,6 +654,9 @@
 /* OpenSSL_add_all_algorithms does nothing. */
 OPENSSL_EXPORT void OpenSSL_add_all_algorithms(void);
 
+/* OpenSSL_add_all_algorithms_conf does nothing. */
+OPENSSL_EXPORT void OpenSSL_add_all_algorithms_conf(void);
+
 /* OpenSSL_add_all_ciphers does nothing. */
 OPENSSL_EXPORT void OpenSSL_add_all_ciphers(void);