diff --git a/src/pipewire/properties.c b/src/pipewire/properties.c
index 4543005b8..4975d755d 100644
--- a/src/pipewire/properties.c
+++ b/src/pipewire/properties.c
@@ -121,6 +121,8 @@ struct pw_properties *pw_properties_new(const char *key, ...)
  *
  * \param dict a dictionary. keys and values are copied
  * \return a new properties object
+ *
+ * `SPA_DICT_FLAG_SORTED` is copied if present on \a dict.
  */
 SPA_EXPORT
 struct pw_properties *pw_properties_new_dict(const struct spa_dict *dict)
@@ -138,6 +140,9 @@ struct pw_properties *pw_properties_new_dict(const struct spa_dict *dict)
 				 strdup(it->value));
 	}
 
+	SPA_FLAG_UPDATE(impl->this.dict.flags, SPA_DICT_FLAG_SORTED,
+			SPA_FLAG_IS_SET(dict->flags, SPA_DICT_FLAG_SORTED));
+
 	return &impl->this;
 }