diff --git a/Source/Apps/tstdskng.asm b/Source/Apps/tstdskng.asm
index 62db7c88..dc1927bb 100644
--- a/Source/Apps/tstdskng.asm
+++ b/Source/Apps/tstdskng.asm
@@ -16,7 +16,7 @@
 FALSE:		.EQU	0
 TRUE:		.EQU	!FALSE
 ;
-DSKY_OSC:	.EQU	100000		; OSCILLATOR FREQ IN HZ
+DSKY_OSC:	.EQU	1000000		; OSCILLATOR FREQ IN HZ
 ;
 BDOS:		.EQU	FALSE		; BDOS OR DIRECT TO 8250ISH
 ;