Index: /trunk/ppImage/src/ppImageDetrendReadout.c
===================================================================
--- /trunk/ppImage/src/ppImageDetrendReadout.c	(revision 13505)
+++ /trunk/ppImage/src/ppImageDetrendReadout.c	(revision 13506)
@@ -18,5 +18,5 @@
     // Masking on the basis of pixel value needs to be done before anything else, so the values are pristine.
     if (options->doMask || options->doShutter || options->doFlat || options->doPhotom) {
-        pmReadoutGenerateMask(input, true);
+        pmReadoutGenerateMask(input);
     }
     // apply the externally supplied mask to the input->mask pixels