diff --git a/bootfiles/18c/boot6.lisp b/bootfiles/18c/boot6.lisp
index 8e6d19844a1807ecd51ac0fa3a4b1629e0afaffe..ae19879782dcb7236a747fc2085acfdacc928237 100644
--- a/bootfiles/18c/boot6.lisp
+++ b/bootfiles/18c/boot6.lisp
@@ -1,8 +1,9 @@
 ;; Bootstrap the pseudo-atomic trap genesis change to put
 ;; trap_PseudoAtomic into internals.h.
 #+sparc
-(progn
-  (load "target:code/exports.lisp")
-  (in-package :sparc)
-  (defconstant pseudo-atomic-trap 16))
+(load "target:code/exports.lisp")
+#+sparc
+(in-package :sparc)
+#+sparc
+(defconstant pseudo-atomic-trap 16))