diff --git a/src/utils/workers/result.hpp b/src/utils/workers/result.hpp
index e986390..c5d3803 100644
--- a/src/utils/workers/result.hpp
+++ b/src/utils/workers/result.hpp
@@ -36,7 +36,7 @@ namespace hr
 
     std::size_t size()
     {
-      if (!empty()) return m_data.at(0).m_value.size();
+      if (!empty()) return m_data.size();
       else return 0;
     }