diff --git a/src/HttpParser.h b/src/HttpParser.h
index 0593b3eec..64b35c56f 100644
--- a/src/HttpParser.h
+++ b/src/HttpParser.h
@@ -43,11 +43,11 @@ static void *FULLPTR = (void *)~(uintptr_t)0;
 
 /* STL needs one of these */
 template <typename T>
-std::optional<T *> maybeify(T *ptr) {
-    return ptr ? ptr : std::nullopt;
+std::optional<T *> optional_ptr(T *ptr) {
+    return ptr ? std::optional<T *>(ptr) : std::nullopt;
 }
 
-static const size_t MAX_FALLBACK_SIZE = atoi(maybeify(getenv("UWS_HTTP_MAX_HEADERS_SIZE")).value_or("4096"));
+static const size_t MAX_FALLBACK_SIZE = atoi(optional_ptr(getenv("UWS_HTTP_MAX_HEADERS_SIZE")).value_or("4096"));
 
 struct HttpRequest {