Index: trunk/ippScripts/scripts/detrend_stack.pl
===================================================================
--- trunk/ippScripts/scripts/detrend_stack.pl	(revision 11319)
+++ trunk/ippScripts/scripts/detrend_stack.pl	(revision 11333)
@@ -91,5 +91,7 @@
 }
 
-unless (defined $workdir) {
+if (defined $workdir) {
+    $workdir = $ipprc->convert_filename_absolute( $workdir );
+} else {
     my $example = ${$files}[0]->{uri}; # Example file
     my ($vol, $dir, $file) = File::Spec->splitpath( $example );
@@ -100,5 +102,4 @@
 my $outputRoot = $camera . '.' . $det_type . '.' . $det_id . '.' . $iter . '.' . $class_id; # Root name
 $outputRoot = File::Spec->catfile( $workdir, $outputRoot );
-$outputRoot = $ipprc->convert_filename_absolute($outputRoot);
 my $outputStack = $outputRoot . '.fits'; # Output name
 my $outputStats = $outputRoot . '.stats'; # Statistics name