diff --git a/pxtarget.json b/pxtarget.json
index 4b5f3e7a..763c6cb0 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -59,7 +59,7 @@
     },
     "simulator": {
         "autoRun": true,
-        "streams": true,
+        "streams": false,
         "aspectRatio": 1.22,
         "parts": true,
         "partsAspectRatio": 0.69,