Index: trunk/ppImage/src/ppImageDetrendFree.c
===================================================================
--- trunk/ppImage/src/ppImageDetrendFree.c	(revision 24485)
+++ trunk/ppImage/src/ppImageDetrendFree.c	(revision 29833)
@@ -13,4 +13,5 @@
     "PPIMAGE.FLAT",
     "PPIMAGE.SHUTTER",
+    "PPIMAGE.LINEARITY",
     NULL
 };
@@ -23,4 +24,5 @@
 
 	pmFPAfile *file = psMetadataLookupPtr(&status, config->files, detrendTypes[i]); // File of interest
+	psTrace("pmFPAfileFree",1,"Working on %s\n",detrendTypes[i]);
 	if (!file) continue; // not all detrends are used in any given run