Index: trunk/ippScripts/scripts/diff_skycell.pl
===================================================================
--- trunk/ippScripts/scripts/diff_skycell.pl	(revision 42476)
+++ trunk/ippScripts/scripts/diff_skycell.pl	(revision 42949)
@@ -403,4 +403,5 @@
     $command .= " -image_id $diff_skyfile_id" if defined $diff_skyfile_id;
     $command .= " -source_id $source_id" if defined $source_id;
+    $command .= " -skycell_id $skycell_id" if defined $skycell_id;
 
     unless ($no_op) {