diff --git a/demos/blockfactory/blocks.js b/demos/blockfactory/blocks.js
index 15c8ac864..34313cad1 100644
--- a/demos/blockfactory/blocks.js
+++ b/demos/blockfactory/blocks.js
@@ -85,8 +85,8 @@ Blockly.Blocks['factory_base'] = {
     var type = this.workspace.newBlock('type_null');
     type.setShadow(true);
     type.outputConnection.connect(this.getInput(outputType).connection);
-    type.initSvg();
     if (this.rendered) {
+      type.initSvg();
       type.render();
     }
   },