diff --git a/src/compile/Component.ts b/src/compile/Component.ts
index af16c8ebec..6d149401b9 100644
--- a/src/compile/Component.ts
+++ b/src/compile/Component.ts
@@ -238,7 +238,7 @@ export default class Component {
 		this.name = this.alias(name);
 
 		const meta = process_meta(this, this.ast.html.children);
-		this.namespace = meta.namespace;
+		this.namespace = namespaces[meta.namespace] || meta.namespace;
 
 		if (options.customElement === true) {
 			this.customElement = {