Index: trunk/ppStack/src/ppStackTarget.c
===================================================================
--- trunk/ppStack/src/ppStackTarget.c	(revision 30620)
+++ trunk/ppStack/src/ppStackTarget.c	(revision 34089)
@@ -191,5 +191,5 @@
 
         float norm = powf(10.0, -0.4 * options->norm->data.F32[i]); // Normalisation from stars
-        float meanVariance = bg->robustMedian * PS_SQR(norm);       // Mean variance in normalised image
+        float meanVariance = mean * PS_SQR(norm);       // Mean variance in normalised image
 
         if (meanVariance < minVariance) {