diff --git a/asminc/atari.inc b/asminc/atari.inc
index c60f6642d..49a125efb 100644
--- a/asminc/atari.inc
+++ b/asminc/atari.inc
@@ -318,7 +318,7 @@ APPMHI  = $0E           ;APPLICATIONS MEMORY HI LIMIT
 
 INTZBS  = $10           ;INTERRUPT HANDLER
 
-POKMSK  = $10           ;SYSTEM MASK FOR POKEY IRG ENABLE
+POKMSK  = $10           ;SYSTEM MASK FOR POKEY IRQ ENABLE
 BRKKEY  = $11           ;BREAK KEY FLAG
 RTCLOK  = $12           ;REAL TIME CLOCK (IN 16 MSEC UNITS>
 BUFADR  = $15           ;INDIRECT BUFFER ADDRESS REGISTER