diff --git a/pxtarget.json b/pxtarget.json
index 2a841ffd..9743189f 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -61,6 +61,7 @@
     },
     "simulator": {
         "autoRun": true,
+        "enableTrace": true,
         "streams": true,
         "aspectRatio": 1.13,
         "parts": false,