Index: trunk/ppSub/src/ppSubArguments.c
===================================================================
--- trunk/ppSub/src/ppSubArguments.c	(revision 13393)
+++ trunk/ppSub/src/ppSubArguments.c	(revision 13462)
@@ -17,5 +17,7 @@
 {
     fprintf(stderr, "\nPan-STARRS PSF-matched image subtraction\n\n");
-    fprintf(stderr, "Usage: %s INPUT.fits REFERENCE.fits OUTPUT_ROOT\n", program);
+    fprintf(stderr, "Usage: %s INPUT.fits REFERENCE.fits OUTPUT_ROOT \n"
+            "\t[-psf REFERENCE.psf.fits|-psflist REFERENCE.list]\n",
+            program);
     fprintf(stderr, "\n");
     psArgumentHelp(arguments);
@@ -139,4 +141,6 @@
     assert(config);
 
+    pmConfigFileSetsMD(config->arguments, &argc, argv, "PSPHOT.PSF", "-psf", "-psflist");
+
     psMetadata *arguments = psMetadataAlloc(); // Command-line arguments
     psMetadataAddStr(arguments, PS_LIST_TAIL, "-inmask", 0, "Input mask image", NULL);