diff --git a/asminc/c16.inc b/asminc/c16.inc
index 9372e72c0..d99a3c758 100644
--- a/asminc/c16.inc
+++ b/asminc/c16.inc
@@ -1,9 +1,9 @@
 ;
 ; C16 generic definitions.
 ;
+; The C16 and Plus/4 are identical, so just include the Plus/4 include file.
 
 
-; ---------------------------------------------------------------------------
-; Zero page, Commodore stuff
+.include        "plus4.inc"
+
 
-DEVNUM 	       	:= $AE 	    	; Device number