diff --git a/src/third_party/wiredtiger/src/btree/bt_walk.c b/src/third_party/wiredtiger/src/btree/bt_walk.c
index dc32f76..21c6d6f 100644
--- a/src/third_party/wiredtiger/src/btree/bt_walk.c
+++ b/src/third_party/wiredtiger/src/btree/bt_walk.c
@@ -272,6 +272,7 @@ __split_prev_race(
  * __tree_walk_internal --
  *	Move to the next/previous page in the tree.
  */
+#pragma optimize("", off)
 static inline int
 __tree_walk_internal(WT_SESSION_IMPL *session,
     WT_REF **refp, uint64_t *walkcntp,
@@ -586,6 +587,7 @@ err:
 	WT_LEAVE_PAGE_INDEX(session);
 	return (ret);
 }
+#pragma optimize("", on)
 
 /*
  * __wt_tree_walk --