Index: trunk/psphot/src/psphotDefinePixels.c
===================================================================
--- trunk/psphot/src/psphotDefinePixels.c	(revision 5049)
+++ trunk/psphot/src/psphotDefinePixels.c	(revision 5134)
@@ -11,5 +11,5 @@
     // Grab a subimage of the original image of size (2 * outerRadius).
     srcRegion = psRegionForSquare (x, y, Radius);
-    srcRegion = psRegionForImage (imdata->image, &srcRegion);
+    srcRegion = psRegionForImage (imdata->image, srcRegion);
 
     mySource->pixels = psImageSubset(imdata->image, srcRegion);