diff --git a/src/ssl.cc b/src/ssl.cc
index 5c6de55a..9c28c7d8 100644
--- a/src/ssl.cc
+++ b/src/ssl.cc
@@ -154,15 +154,14 @@ bool check_http2_requirement(SSL *ssl) {
 void libssl_init() {
 #if OPENSSL_1_1_API
 // No explicit initialization is required.
-#else // !OPENSSL_1_1_API
-// OPENSSL_config() is not available in BoringSSL.
-#if !defined(OPENSSL_IS_BORINGSSL)
+#elif defined(OPENSSL_IS_BORINGSSL)
+  CRYPTO_library_init();
+#else  // !OPENSSL_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
   OPENSSL_config(nullptr);
-#endif // !defined(OPENSSL_IS_BORINGSSL)
   SSL_load_error_strings();
   SSL_library_init();
   OpenSSL_add_all_algorithms();
-#endif // !OPENSSL_1_1_API
+#endif // !OPENSSL_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
 }
 
 int ssl_ctx_set_proto_versions(SSL_CTX *ssl_ctx, int min, int max) {