Index: trunk/ppSub/src/ppSubReadout.c
===================================================================
--- trunk/ppSub/src/ppSubReadout.c	(revision 17303)
+++ trunk/ppSub/src/ppSubReadout.c	(revision 17366)
@@ -192,4 +192,14 @@
         pmFPACopy(photFile->fpa, outRO->parent->parent->parent);
 
+        // Need to ensure aperture residual is not calculated
+        psMetadata *recipe = psMetadataLookupMetadata(NULL, config->recipes, PSPHOT_RECIPE); // Recipe
+        psMetadataItem *item = psMetadataLookup(recipe, "MEASURE.APTREND"); // Item determining aptrend
+        if (!item) {
+            psWarning("Unable to find MEASURE.APTREND in psphot recipe");
+            psErrorClear();
+        } else {
+            item->data.B = false;
+        }
+
         if (!psphotReadout(config, view)) {
             psWarning("Unable to perform photometry on subtracted image.");