Index: /trunk/ippScripts/scripts/detrend_stack.pl
===================================================================
--- /trunk/ippScripts/scripts/detrend_stack.pl	(revision 9265)
+++ /trunk/ippScripts/scripts/detrend_stack.pl	(revision 9266)
@@ -46,6 +46,5 @@
     };
 
-die "Unrecognised detrend type: $det_type\n" if not defined RECIPES()->{$det_type}
-                                             or not defined NORMALISE()->{$det_type};
+die "Unrecognised detrend type: $det_type\n" if not defined RECIPES()->{$det_type};
 my $recipe = RECIPES()->{$det_type}; # Recipe to use in stacking