Index: trunk/ppSub/src/ppSubReadout.c
===================================================================
--- trunk/ppSub/src/ppSubReadout.c	(revision 17834)
+++ trunk/ppSub/src/ppSubReadout.c	(revision 17835)
@@ -319,4 +319,5 @@
         psMetadataAddPtr(psfRO->parent->parent->analysis, PS_LIST_TAIL, "PSPHOT.PSF", PS_DATA_UNKNOWN,
                          "PSF from matched addition", psf);
+        psFree(psf);
 
         // Need to ensure aperture residual is not calculated