diff --git a/repertory/librepertory/src/file_manager/file_manager.cpp b/repertory/librepertory/src/file_manager/file_manager.cpp
index e95be482..afd072b7 100644
--- a/repertory/librepertory/src/file_manager/file_manager.cpp
+++ b/repertory/librepertory/src/file_manager/file_manager.cpp
@@ -1012,7 +1012,7 @@ void file_manager::upload_completed(const file_upload_completed &evt) {
       bool exists{};
       auto res = provider_.is_file(evt.get_api_path(), exists);
       if ((res == api_error::success && not exists) ||
-          not utils::file::is_file(evt.get_source())) {
+          not utils::file::is_file(evt.get_source().get<std::string>())) {
         event_system::instance().raise<file_upload_not_found>(
             evt.get_api_path(), evt.get_source());
         remove_upload(evt.get_api_path(), true);