Index: trunk/psphot/src/psphotSkyReplace.c
===================================================================
--- trunk/psphot/src/psphotSkyReplace.c	(revision 27657)
+++ trunk/psphot/src/psphotSkyReplace.c	(revision 28013)
@@ -1,5 +1,5 @@
 # include "psphotInternal.h"
 
-bool psphotSkyReplace (pmConfig *config, const pmFPAview *view)
+bool psphotSkyReplace (pmConfig *config, const pmFPAview *view, const char *filerule)
 {
     bool status = true;
@@ -15,6 +15,6 @@
     for (int i = 0; i < num; i++) {
 	if (i == chisqNum) continue; // skip chisq image
-	if (!psphotSkyReplaceReadout (config, view, "PSPHOT.INPUT", i)) {
-            psError (PSPHOT_ERR_CONFIG, false, "failed to replace sky for PSPHOT.INPUT entry %d", i);
+	if (!psphotSkyReplaceReadout (config, view, filerule, i)) {
+            psError (PSPHOT_ERR_CONFIG, false, "failed to replace sky for %s entry %d", filerule, i);
 	    return false;
 	}
@@ -25,10 +25,10 @@
 // XXX make this an option?
 // in order to  successfully replace the sky, we must define a corresponding file...
-bool psphotSkyReplaceReadout (pmConfig *config, const pmFPAview *view, const char *filename, int index) {
+bool psphotSkyReplaceReadout (pmConfig *config, const pmFPAview *view, const char *filerule, int index) {
 
     psTimerStart ("psphot.skyreplace");
 
     // find the currently selected readout
-    pmFPAfile *file = pmFPAfileSelectSingle(config->files, filename, index); // File of interest
+    pmFPAfile *file = pmFPAfileSelectSingle(config->files, filerule, index); // File of interest
     psAssert (file, "missing file?");