Index: trunk/psphot/src/psphotAddNoise.c
===================================================================
--- trunk/psphot/src/psphotAddNoise.c	(revision 13035)
+++ trunk/psphot/src/psphotAddNoise.c	(revision 13330)
@@ -68,5 +68,5 @@
 
 	// XXX if we use pmSourceOp, the size (and possibly Io) will not be respected
-	pmSourceOp (source, PM_MODEL_OP_FULL, add);
+	pmSourceOp (source, PM_MODEL_OP_FULL | PM_MODEL_OP_NOISE, add);
 	
 	// restore original values