1 files changed, 3 insertions, 0 deletions
diff --git a/src/dialog.cpp b/src/dialog.cpp
index e13bb81..cccf3b4 100644
--- a/src/dialog.cpp
+++ b/src/dialog.cpp
@@ -90,6 +90,9 @@ void Dialog::on_treeView_doubleClicked(QModelIndex index)
     SessionTreeItem* item =
                     static_cast<SessionTreeItem*>(index.internalPointer());
 
+    if (item == NULL)
+            return; // do nothing if cast failed
+
     const Session* s(item->session());
     if (s == NULL) // no valid session has been selected, do nothing
             return;