diff --git a/sources/genericpanel.cpp b/sources/genericpanel.cpp
index b833f999a..299ef5988 100644
--- a/sources/genericpanel.cpp
+++ b/sources/genericpanel.cpp
@@ -1226,7 +1226,8 @@ template<typename T>
 T GenericPanel::valueForItem(QTreeWidgetItem *item) const {
 	return(qVariantValue<T>(item -> data(0, GenericPanel::Item)));
 }
-
+template ElementsLocation GenericPanel::valueForItem(QTreeWidgetItem*)
+const;
 /**
 	
 */