Index: trunk/ppMerge/src/ppMergeArguments.c
===================================================================
--- trunk/ppMerge/src/ppMergeArguments.c	(revision 33666)
+++ trunk/ppMerge/src/ppMergeArguments.c	(revision 40485)
@@ -261,4 +261,5 @@
     }
     if (!strcasecmp(typeStr, "FLAT") ||
+        !strcasecmp(typeStr, "FLATTEST") ||
         !strcasecmp(typeStr, "DOMEFLAT") ||
         !strcasecmp(typeStr, "SKYFLAT") ||