diff --git a/mach/m68020/libem/shp.s b/mach/m68020/libem/shp.s
index 2d6c3b5c8..afda78cf7 100644
--- a/mach/m68020/libem/shp.s
+++ b/mach/m68020/libem/shp.s
@@ -13,11 +13,10 @@ EHEAP=17
 	blt	1f
 	add.l	#0x400, d1
 	and.l	#~0x3ff, d1
-	move.l	d1, (.limhp)
 	move.l	d1, -(sp)
 	jsr	(_brk)		! allocate 1K bytes of extra storage
-	add.l	#4, sp
 	bcs	2f
+	move.l	(sp)+,(.limhp)
 1:
 	move.l	(sp)+, (.reghp)	! store new value
 	jmp	(a0)		! return