diff --git a/src/compile/render-dom/Renderer.ts b/src/compile/render-dom/Renderer.ts
index 0a79549e45..b1aa025049 100644
--- a/src/compile/render-dom/Renderer.ts
+++ b/src/compile/render-dom/Renderer.ts
@@ -70,6 +70,8 @@ export default class Renderer {
 			}
 		});
 
+		this.block.assignVariableNames();
+
 		this.fragment.render(this.block, null, 'nodes');
 	}
 }
\ No newline at end of file