diff --git a/repertory/librepertory/src/comm/curl/requests/http_put_file.cpp b/repertory/librepertory/src/comm/curl/requests/http_put_file.cpp
index 00260697..565c3fdc 100644
--- a/repertory/librepertory/src/comm/curl/requests/http_put_file.cpp
+++ b/repertory/librepertory/src/comm/curl/requests/http_put_file.cpp
@@ -58,7 +58,15 @@ auto http_put_file::set_method(CURL *curl, stop_type &stop_requested) const
     return false;
   }
 
-  auto file_size = read_info->file->size().value_or(0U);
+  auto opt_size = read_info->file->size();
+  if (not opt_size.has_value()) {
+    utils::error::raise_url_error(
+        function_name, get_path(), source_path,
+        std::runtime_error("failed to get file size"));
+    return false;
+  }
+
+  auto file_size = opt_size.value();
   if (file_size == 0U) {
     curl_easy_setopt(curl, CURLOPT_INFILESIZE, 0L);
     return true;