Index: trunk/psphot/src/psphotMagnitudes.c
===================================================================
--- trunk/psphot/src/psphotMagnitudes.c	(revision 28043)
+++ trunk/psphot/src/psphotMagnitudes.c	(revision 28098)
@@ -87,5 +87,5 @@
     bool IGNORE_GROWTH  = psMetadataLookupBool (&status, recipe, "IGNORE_GROWTH");
     bool INTERPOLATE_AP = psMetadataLookupBool (&status, recipe, "INTERPOLATE_AP");
-    bool DIFF_STATS     = psMetadataLookupBool (&status, recipe, "INTERPOLATE_AP");
+    bool DIFF_STATS     = psMetadataLookupBool (&status, recipe, "DIFF_STATS");
 
     pmSourcePhotometryMode photMode = PM_SOURCE_PHOT_APCORR | PM_SOURCE_PHOT_WEIGHT;