Index: trunk/ippScripts/scripts/ipp_detrend_combine.pl
===================================================================
--- trunk/ippScripts/scripts/ipp_detrend_combine.pl	(revision 17096)
+++ trunk/ippScripts/scripts/ipp_detrend_combine.pl	(revision 17105)
@@ -118,4 +118,7 @@
 
     die("Unable to get det_id and iteration for new detrend.\n") unless defined $det_id and defined $iter;
+} else {
+    $det_id = 'DUMMY_DET_ID';
+    $iter = 'DUMMY_ITER';
 }