diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index c8ec0795..ae71dcdb 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -5757,17 +5757,23 @@ Z280_SYSCALL_GO:
 ;
 DRV_ORG		.EQU	$
 DRV_SIZ		.EQU	0
+DEBUG_ON	.EQU	FALSE
 ;
 #DEFINE	LOAD_DRV(driver) \
-#DEFCONT \DRV_ORG .SET $
-#DEFCONT \#INCLUDE "driver.asm"
-#DEFCONT \#IF (1) 
-#DEFCONT \DRV_SIZ .SET ($-DRV_ORG)
-#DEFCONT \.ECHO "driver occupies "
-#DEFCONT \.ECHO DRV_SIZ
-#DEFCONT \.ECHO " bytes.\n" 
-#DEFCONT \#ENDIF
-
+#DEFCONT DRV_ORG .SET $ \
+#DEFCONT #INCLUDE "driver.asm" \
+#DEFCONT DRV_SIZ .SET ($-DRV_ORG) \
+#DEFCONT .ECHO "driver occupies " \
+#DEFCONT .ECHO DRV_SIZ \
+#DEFCONT .ECHO " bytes. " \
+#DEFCONT #IFDEF driver \
+#DEFCONT .ECHO "Debugging on.\n" \
+#DEFCONT DEBUG_ON .SET TRUE \
+#DEFCONT #ELSE \
+#DEFCONT DEBUG_ON .SET FALSE \
+#DEFCONT .ECHO "\n" \
+#DEFCONT #ENDIF 
+;
 #IF (DSRTCENABLE)
 LOAD_DRV(dsrtc)
 #ENDIF