diff --git a/mach/vax4/libbsd4_2/cerror.s b/mach/vax4/libbsd4_2/cerror.s
index d67239426..69458527c 100644
--- a/mach/vax4/libbsd4_2/cerror.s
+++ b/mach/vax4/libbsd4_2/cerror.s
@@ -2,8 +2,10 @@
 .sect .text
 .define	_errno
 .define	cerror
-.comm _errno, 4
 cerror:
 	movl	r0,_errno
 	mnegl	$1,r0
 	ret
+
+.sect .bss
+.comm _errno, 4