Index: trunk/ippScripts/scripts/detrend_stack.pl
===================================================================
--- trunk/ippScripts/scripts/detrend_stack.pl	(revision 9266)
+++ trunk/ippScripts/scripts/detrend_stack.pl	(revision 9337)
@@ -43,4 +43,5 @@
     'bias' => 'PPMERGE_BIAS',
     'dark' => 'PPMERGE_DARK',
+    'shutter' => 'PPMERGE_SHUTTER',
     'flat' => 'PPMERGE_FLAT'
     };