diff --git a/include/ssl_key_handler.hpp b/include/ssl_key_handler.hpp
index 39e83d7..24e40a4 100644
--- a/include/ssl_key_handler.hpp
+++ b/include/ssl_key_handler.hpp
@@ -205,8 +205,7 @@
 inline int addExt(X509* cert, int nid, const char* value)
 {
     X509_EXTENSION* ex = nullptr;
-    X509V3_CTX ctx;
-    X509V3_set_ctx_nodb(&ctx);
+    X509V3_CTX ctx{};
     X509V3_set_ctx(&ctx, cert, cert, nullptr, nullptr, 0);
     ex = X509V3_EXT_conf_nid(nullptr, &ctx, nid, const_cast<char*>(value));
     if (!ex)