diff --git a/src/chkmat.s b/src/chkmat.s
index 51360c5..a26fd98 100644
--- a/src/chkmat.s
+++ b/src/chkmat.s
@@ -36,7 +36,7 @@ CHKMAT: PUSH  P,A                      ;Save the register A
         PUSH  P,C                      ;Save the data register
         PUSH  P,E                      ;Save the E register
         PUSH  P,X                      ;Save the index register
-        MOVEI D,11                     ;Load D with 16.
+        MOVEI D,11                     ;Load D with 9.
         SETZ  E                        ;Set the hash register to 0.
         MOVE  X,[440400,,C]            ;Store a byte pointer to C
 CKLOOP: SOJE  D,CHKEXT                 ;All bits set?