diff --git a/lib/bcoin/output.js b/lib/bcoin/output.js
index 9a9ed4f8..aed7b6b5 100644
--- a/lib/bcoin/output.js
+++ b/lib/bcoin/output.js
@@ -20,7 +20,7 @@ function Output(options) {
     return new Output(options);
 
   if (!tx)
-    throw new Error('No TX passed into Input.');
+    throw new Error('No TX passed into Output.');
 
   value = options.value;