diff --git a/src/virtual-machine.js b/src/virtual-machine.js
index 475272e22..6ce9de918 100644
--- a/src/virtual-machine.js
+++ b/src/virtual-machine.js
@@ -669,6 +669,7 @@ class VirtualMachine extends EventEmitter {
         // so the dataFormat should be 'svg'
         costume.dataFormat = storage.DataFormat.SVG;
         costume.md5 = `${costume.assetId}.${costume.dataFormat}`;
+        costume.bitmapResolution = 1;
         this.emitTargetsUpdate();
     }