Index: layer.h
===================================================================
--- layer.h	(revision 19012)
+++ layer.h	(revision 19013)
@@ -92,7 +92,7 @@
 	PCB_LYC_AUTO = 2        /* bit 1 is 0 for manual drawn layer or 1 for side-effect objects from padstacks; this is how the user controls on which composite mask/paste layer padstack side effects should appear */
 } pcb_layer_combining_t;
 
-#define PCB_LAYER_IN_STACK(lyt) (((lyt) & PCB_LYT_COPPER) || ((lyt) & PCB_LYT_SILK) || ((lyt) & PCB_LYT_MASK) || ((lyt) & PCB_LYT_PASTE))
+#define PCB_LAYER_IN_STACK(lyt) (((lyt) & PCB_LYT_COPPER) || ((lyt) & PCB_LYT_SILK) || ((lyt) & PCB_LYT_MASK) || ((lyt) & PCB_LYT_PASTE) || ((lyt) & PCB_LYT_SUBSTRATE))
 
 
 #include "globalconst.h"