diff --git a/core/include/Data/DataProviderParameters.h b/core/include/Data/DataProviderParameters.h
index 6e68dda..1ffc96b 100644
--- a/core/include/Data/DataProviderParameters.h
+++ b/core/include/Data/DataProviderParameters.h
@@ -9,7 +9,10 @@
  * @sa IDataProvider
  */
 struct DataProviderParameters {
+    /// Times for which retrieve data
     QVector<SqpDateTime> m_Times;
+    /// Extra data that can be used by the provider to retrieve data
+    QVariantHash m_Data;
 };
 
 #endif // SCIQLOP_DATAPROVIDERPARAMETERS_H
diff --git a/core/src/Variable/VariableController.cpp b/core/src/Variable/VariableController.cpp
index 6242bc9..d034d23 100644
--- a/core/src/Variable/VariableController.cpp
+++ b/core/src/Variable/VariableController.cpp
@@ -187,7 +187,8 @@ void VariableController::onRequestDataLoading(std::shared_ptr<Variable> variable
             // Ask the provider for each data on the dateTimeListNotInCache
             auto identifier = impl->m_VariableToIdentifier.at(variable);
             impl->m_VariableToProviderMap.at(variable)->requestDataLoading(
-                identifier, DataProviderParameters{std::move(dateTimeListNotInCache)});
+                identifier,
+                DataProviderParameters{std::move(dateTimeListNotInCache), variable->metadata()});
         }
         else {
             emit variable->updated();