diff --git a/CHANGELOG.md b/CHANGELOG.md
index 13af07f..b31af86 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+2.0.2 / Unreleased
+------------------
+* Bug fix
+
 2.0.1 / 2017-03-11
 ------------------
 * Update some dependencies
diff --git a/src/index.ts b/src/index.ts
index f502114..b1124df 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -64,6 +64,10 @@ export default async (url: string, options?: Options): Promise<Result> => {
 	// Get summary
 	const summary = await (match ? match.summarize : general)(_url);
 
+	if (summary == null) {
+		throw 'failed summarize';
+	}
+
 	return Object.assign(summary, {
 		url: actualUrl
 	});