diff --git a/src/components/messages/messageMixin.js b/src/components/messages/messageMixin.js
index e51e53c..ba2a917 100644
--- a/src/components/messages/messageMixin.js
+++ b/src/components/messages/messageMixin.js
@@ -82,7 +82,7 @@ export default {
         while (lines.length && !lines[0].startsWith('> ')) lines.shift();
         // Reply fallback has a blank line after it, so remove it to prevent leading newline
         if (lines[0] === '') lines.shift();
-        const text = lines[0].replace(/^> (<.*> )?/g, '');
+        const text = lines[0] && lines[0].replace(/^> (<.*> )?/g, '');
         if (text) {
           return text;
         }