diff --git a/mach/i386/as/mach0.c b/mach/i386/as/mach0.c
index 4dbb88ac5..c84a3d0ae 100644
--- a/mach/i386/as/mach0.c
+++ b/mach/i386/as/mach0.c
@@ -10,7 +10,6 @@
 #define	THREE_PASS	/* branch and offset optimization */
 #define	LISTING		/* enable listing facilities */
 #define RELOCATION	/* generate relocation info */
-#define DEBUG 1
 
 #undef valu_t
 #define valu_t long
diff --git a/mach/vax4/as/mach0.c b/mach/vax4/as/mach0.c
index 09fd4123c..89545f8b3 100644
--- a/mach/vax4/as/mach0.c
+++ b/mach/vax4/as/mach0.c
@@ -11,7 +11,6 @@
 #define THREE_PASS
 #define LISTING
 #define RELOCATION
-#define DEBUG 2			/* as long as we are testing ... */
 
 #undef valu_t
 #define valu_t long