Index: trunk/psphot/src/psphotSignificanceImage.c
===================================================================
--- trunk/psphot/src/psphotSignificanceImage.c	(revision 28667)
+++ trunk/psphot/src/psphotSignificanceImage.c	(revision 29004)
@@ -97,5 +97,6 @@
                 smooth_im->data.F32[j][i] = 0.0;
             } else {
-                smooth_im->data.F32[j][i] = factor * PS_SQR(value) / smooth_wt->data.F32[j][i];
+		float v2 = value + PS_SQR(value/1000.0);
+                smooth_im->data.F32[j][i] = factor * PS_SQR(v2) / smooth_wt->data.F32[j][i];
             }
         }