Index: trunk/ppStack/src/ppStackMatch.c
===================================================================
--- trunk/ppStack/src/ppStackMatch.c	(revision 26051)
+++ trunk/ppStack/src/ppStackMatch.c	(revision 26074)
@@ -388,5 +388,5 @@
             if (kernel) {
                 if (!pmSubtractionMatchPrecalc(NULL, conv, fake, readout, readout->analysis,
-                                               stride, sysError, maskVal, maskBad, maskPoor,
+                                               stride, kernelError, maskVal, maskBad, maskPoor,
                                                poorFrac, badFrac)) {
                     psError(PS_ERR_UNKNOWN, false, "Unable to convolve images.");