diff --git a/racket/src/expander/compile/serialize.rkt b/racket/src/expander/compile/serialize.rkt
index eb9a1e6da7..e95d2c771a 100644
--- a/racket/src/expander/compile/serialize.rkt
+++ b/racket/src/expander/compile/serialize.rkt
@@ -951,7 +951,7 @@
     syntax-module-path-index-shift))
     
 (define deserialize-instance
-  (make-instance 'deserialize #f 'constant
+  (make-instance 'deserialize #f 'consistent
                  'deserialize-module-path-indexes deserialize-module-path-indexes
                  'syntax-module-path-index-shift syntax-module-path-index-shift/no-keywords
                  'syntax-shift-phase-level syntax-shift-phase-level