diff --git a/sys/i386/i386/locore.s b/sys/i386/i386/locore.s
index 2579ba76e57d..bd25fe8a6179 100644
--- a/sys/i386/i386/locore.s
+++ b/sys/i386/i386/locore.s
@@ -788,7 +788,12 @@ no_kernend:
 
 /* Map read-only from zero to the beginning of the kernel text section */
 	xorl	%eax, %eax
+#ifdef BURN_BRIDGES
 	xorl	%edx,%edx
+#else
+/* XXX emulate bugs in the old PSE code so that apm works */
+	movl	$PG_RW,%edx
+#endif
 	movl	$R(btext),%ecx
 	addl	$PAGE_MASK,%ecx
 	shrl	$PAGE_SHIFT,%ecx