diff --git a/src/index.ts b/src/index.ts
index 472e0e4..ccfde8f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,4 @@
-import { is, fromJS, Dataflow, Dataspace, Embedded, Ref, Schemas, Turn } from "@syndicate-lang/core";
+import { is, fromJS, Dataflow, Dataspace, Double, Embedded, Ref, Schemas, Turn } from "@syndicate-lang/core";
 import * as html from "@syndicate-lang/html";
 import * as timer from "@syndicate-lang/timer";
 import * as wsRelay from "@syndicate-lang/ws-relay";
@@ -118,7 +118,7 @@ async function enterScene(
     field position: Shapes.ImmediateVector3 = currentPosition();
     field rotation: Shapes.ImmediateVector3 = currentRotation();
 
-    const refreshPeriod = Math.floor(1000 / 10);
+    const refreshPeriod = Double(1 / 10);
     at ds {
         on message timer.PeriodicTick(refreshPeriod) => {
             const newPosition = currentPosition();