Index: trunk/ppSub/src/ppSubReadout.c
===================================================================
--- trunk/ppSub/src/ppSubReadout.c	(revision 14586)
+++ trunk/ppSub/src/ppSubReadout.c	(revision 14593)
@@ -80,6 +80,8 @@
 
     // Add kernel descrption to header
-    psMetadataAddStr(outHDU->header, PS_LIST_TAIL, "PPSUB.KERNEL", 0, "Subtraction kernel",
-                     psMetadataLookupStr(NULL, outRO->analysis, "SUBTRACTION.KERNEL.DESCRIPTION"));
+    pmSubtractionKernels *kernels = psMetadataLookupPtr(NULL, outRO->analysis,
+                                                        "SUBTRACTION.KERNEL"); // The subtraction kernels
+    psMetadataAddStr(outHDU->header, PS_LIST_TAIL, "PPSUB.KERNEL", 0,
+                     "Subtraction kernel", kernels->description);
 
     // Do the subtraction