Index: trunk/ppStack/src/ppStackMatch.c
===================================================================
--- trunk/ppStack/src/ppStackMatch.c	(revision 25376)
+++ trunk/ppStack/src/ppStackMatch.c	(revision 25447)
@@ -266,6 +266,8 @@
             psRegion *region = psMetadataLookupPtr(NULL, conv->analysis,
                                                    PM_SUBTRACTION_ANALYSIS_REGION); // Convolution region
-
-            pmSubtractionAnalysis(readout->analysis, kernels, region,
+            pmSubtractionKernels *kernels = psMetadataLookupPtr(NULL, conv->analysis,
+                                                                PM_SUBTRACTION_ANALYSIS_KERNEL);
+
+            pmSubtractionAnalysis(readout->analysis, NULL, kernels, region,
                                   readout->image->numCols, readout->image->numRows);