diff --git a/src/ChecksumResolver.js b/src/ChecksumResolver.js
index 6302133..fecf4d3 100644
--- a/src/ChecksumResolver.js
+++ b/src/ChecksumResolver.js
@@ -68,6 +68,7 @@ class ChecksumResolver extends React.Component {
     this.state = {
       checksum: '',
       fileName: 'input.aax',
+      activationBytes: ''
     }
   }