Index: trunk/ppStack/src/ppStackFinish.c
===================================================================
--- trunk/ppStack/src/ppStackFinish.c	(revision 27157)
+++ trunk/ppStack/src/ppStackFinish.c	(revision 27158)
@@ -70,4 +70,7 @@
     // Write out summary statistics
     if (options->stats) {
+
+        psMetadataAddS32(options->stats, PS_LIST_TAIL, "QUALITY", PS_META_REPLACE,
+                         "Bad data quality flag", options->quality);
         psMetadataAddF32(options->stats, PS_LIST_TAIL, "TIME_STACK", 0,
                          "Total time", psTimerClear("PPSTACK_TOTAL"));