diff --git a/src/racket/src/module.c b/src/racket/src/module.c
index 60ef7a7e42..a6e7bd915c 100644
--- a/src/racket/src/module.c
+++ b/src/racket/src/module.c
@@ -2937,7 +2937,7 @@ static Scheme_Object *make_resolved_module_path_obj(Scheme_Object *o)
 
 #if defined(MZ_USE_PLACES)
   if (SCHEME_SYMBOLP(o)) {
-    newo = scheme_make_sized_offset_byte_string(SCHEME_SYM_VAL(o), 0, SCHEME_SYM_LEN(o), 1);
+    newo = scheme_make_sized_offset_byte_string(o, SCHEME_SYMSTR_OFFSET(o), SCHEME_SYM_LEN(o), 1);
   }
   else {
     newo = o;
diff --git a/src/racket/src/places.c b/src/racket/src/places.c
index 456f5710a2..94b505e03e 100644
--- a/src/racket/src/places.c
+++ b/src/racket/src/places.c
@@ -806,7 +806,7 @@ Scheme_Object *scheme_places_deep_copy_worker(Scheme_Object *so, Scheme_Hash_Tab
         scheme_log_abort("cannot copy uninterned symbol");
         abort();
       } else {
-        new_so = scheme_make_sized_offset_byte_string(SCHEME_SYM_VAL(so), 0, SCHEME_SYM_LEN(so), 1);
+        new_so = scheme_make_sized_offset_byte_string(so, SCHEME_SYMSTR_OFFSET(so), SCHEME_SYM_LEN(so), 1);
         new_so->type = scheme_serialized_symbol_type;
       }
       break;
diff --git a/src/racket/src/struct.c b/src/racket/src/struct.c
index c1fd60f9b4..8ced80b2c8 100644
--- a/src/racket/src/struct.c
+++ b/src/racket/src/struct.c
@@ -4653,7 +4653,7 @@ static Scheme_Object *make_prefab_key(Scheme_Struct_Type *type)
 #if defined(MZ_USE_PLACES)
     if (SCHEME_SYMBOLP(type->name)) {
       Scheme_Object *newname;
-      newname = scheme_make_sized_offset_byte_string(SCHEME_SYM_VAL(type->name), 0, SCHEME_SYM_LEN(type->name), 1);
+      newname = scheme_make_sized_offset_byte_string(type->name, SCHEME_SYMSTR_OFFSET(type->name), SCHEME_SYM_LEN(type->name), 1);
       key = scheme_make_pair(newname, key);
     }
     else {
@@ -4748,7 +4748,7 @@ Scheme_Struct_Type *scheme_lookup_prefab_type(Scheme_Object *key, int field_coun
 #if defined(MZ_USE_PLACES)
   if (SCHEME_SYMBOLP(key)) {
     Scheme_Object *newname;
-    newname = scheme_make_sized_offset_byte_string(SCHEME_SYM_VAL(key), 0, SCHEME_SYM_LEN(key), 1);
+    newname = scheme_make_sized_offset_byte_string(key, SCHEME_SYMSTR_OFFSET(key), SCHEME_SYM_LEN(key), 1);
     key = scheme_make_pair(newname, scheme_null);
   }
   if (SCHEME_BYTE_STRINGP(key))