1 files changed, 2 insertions, 0 deletions

diff --git a/libkcal/incidencebase.h b/libkcal/incidencebase.h
index 665c1f6..444d4c4 100644
--- a/libkcal/incidencebase.h
+++ b/libkcal/incidencebase.h
@@ -65,2 +65,3 @@ class IncidenceBase : public CustomProperties
     QDateTime lastModified() const;
+    QString lastModifiedSortKey() const;
 
@@ -162,2 +163,3 @@ class IncidenceBase : public CustomProperties
     QString mOrganizer;
+    QString mLastModifiedKey;
     QString mUid;