diff --git a/src/index.js b/src/index.js
index 9d91082a..5fd35006 100644
--- a/src/index.js
+++ b/src/index.js
@@ -206,9 +206,7 @@ export default function renderToString(vnode, context, opts, inner, isSvgMode) {
 }
 
 function getComponentName(component) {
-	let proto = component.prototype,
-		ctor = proto && proto.constructor;
-	return component.displayName || component.name || (proto && (proto.displayName || proto.name)) || getFallbackComponentName(component);
+	return component.displayName || component!==Function && component.name || getFallbackComponentName(component);
 }
 
 function getFallbackComponentName(component) {