Index: trunk/psphot/src/psphotOutput.c
===================================================================
--- trunk/psphot/src/psphotOutput.c	(revision 13411)
+++ trunk/psphot/src/psphotOutput.c	(revision 13808)
@@ -142,10 +142,10 @@
 
     // sky background model statistics
-    psMetadataItemSupplement (header, recipe, "SKY_MEAN");
-    psMetadataItemSupplement (header, recipe, "SKY_SIG");
-    psMetadataItemSupplement (header, recipe, "SKY_MIN");
-    psMetadataItemSupplement (header, recipe, "SKY_MAX");
-    psMetadataItemSupplement (header, recipe, "SKY_NX");
-    psMetadataItemSupplement (header, recipe, "SKY_NY");
+    psMetadataItemSupplement (header, recipe, "MSKY_MN");
+    psMetadataItemSupplement (header, recipe, "MSKY_SIG");
+    psMetadataItemSupplement (header, recipe, "MSKY_MIN");
+    psMetadataItemSupplement (header, recipe, "MSKY_MAX");
+    psMetadataItemSupplement (header, recipe, "MSKY_NX");
+    psMetadataItemSupplement (header, recipe, "MSKY_NY");
 
     // XXX : don't require any of these about values to exist