Index: trunk/psphot/src/psphotStackImageLoop.c
===================================================================
--- trunk/psphot/src/psphotStackImageLoop.c	(revision 32704)
+++ trunk/psphot/src/psphotStackImageLoop.c	(revision 32726)
@@ -164,4 +164,5 @@
 	    outHDU->header = psMetadataCopy(NULL, inHDU->header);
 	}
+	psphotVersionHeaderFull(outHDU->header);
 	outChip->toFPA = psMemIncrRefCounter(inChip->toFPA);
 	outChip->fromFPA = psMemIncrRefCounter(inChip->fromFPA);