diff --git a/contrib/elftoolchain/elfcopy/segments.c b/contrib/elftoolchain/elfcopy/segments.c
index 853c728e8f37..d358e5c3695d 100644
--- a/contrib/elftoolchain/elfcopy/segments.c
+++ b/contrib/elftoolchain/elfcopy/segments.c
@@ -439,7 +439,7 @@ copy_phdr(struct elfcopy *ecp)
 		seg->fsz = seg->msz = 0;
 		for (i = 0; i < seg->nsec; i++) {
 			s = seg->v_sec[i];
-			seg->msz = s->off + s->sz - seg->off;
+			seg->msz = s->vma + s->sz - seg->addr;
 			if (s->type != SHT_NOBITS)
 				seg->fsz = seg->msz;
 		}