Index: branches/pap/psModules/src/imcombine/pmSubtraction.c
===================================================================
--- branches/pap/psModules/src/imcombine/pmSubtraction.c	(revision 25903)
+++ branches/pap/psModules/src/imcombine/pmSubtraction.c	(revision 25917)
@@ -29,5 +29,5 @@
 #define PIXEL_LIST_BUFFER 100           // Number of entries to add to pixel list at a time
 #define MIN_SAMPLE_STATS    7           // Minimum number to use sample statistics; otherwise use quartiles
-//#define USE_SYS_ERR                   // Use systematic error image?
+#define USE_SYS_ERR                   // Use systematic error image?
 
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////