diff --git a/src/ctselect/ctselect.cpp b/src/ctselect/ctselect.cpp
index 6c2f045..85b5163 100644
--- a/src/ctselect/ctselect.cpp
+++ b/src/ctselect/ctselect.cpp
@@ -934,6 +934,9 @@ void ctselect::select_events(GCTAObservation*   obs,
     obs->ontime(list->gti().ontime());
     obs->livetime(list->gti().ontime() * obs->deadc());
 
+    // Set observation attributes
+    obs->eventfile("");
+
     // Return
     return;
 }