Index: trunk/psphot/src/psphotTestPSF.c
===================================================================
--- trunk/psphot/src/psphotTestPSF.c	(revision 18555)
+++ trunk/psphot/src/psphotTestPSF.c	(revision 21183)
@@ -111,5 +111,5 @@
         psImageKeepCircle (source->mask, x, y, RADIUS, "OR", markVal);
         status = pmSourceFitModel (source, model, PM_SOURCE_FIT_EXT);
-        psImageKeepCircle (source->mask, x, y, RADIUS, "AND", PS_NOT_U8(markVal));
+        psImageKeepCircle (source->mask, x, y, RADIUS, "AND", PS_NOT_IMAGE_MASK(markVal));
 
 	// write fitted parameters to file