Index: trunk/psphot/src/psphotRadialPlot.c
===================================================================
--- trunk/psphot/src/psphotRadialPlot.c	(revision 15017)
+++ trunk/psphot/src/psphotRadialPlot.c	(revision 21183)
@@ -60,5 +60,5 @@
     for (int iy = 0; iy < source->pixels->numRows; iy++) {
 	for (int ix = 0; ix < source->pixels->numCols; ix++) {
-	    if (source->maskObj->data.U8[iy][ix]) {
+	    if (source->maskObj->data.PS_TYPE_IMAGE_MASK_DATA[iy][ix]) {
 		rb->data.F32[nb] = hypot (ix - Xo, iy - Yo) ;
 		fb->data.F32[nb] = log10(source->pixels->data.F32[iy][ix]);