diff --git a/tasks/release/generateReleaseNotes.mjs b/tasks/release/generateReleaseNotes.mjs
index a63fd733d01d..45a6b0afea51 100755
--- a/tasks/release/generateReleaseNotes.mjs
+++ b/tasks/release/generateReleaseNotes.mjs
@@ -19,7 +19,7 @@ import octokit from './octokit.mjs'
  */
 export default async function generateReleaseNotes(
   milestone,
-  { releaseCandidate }
+  { releaseCandidate = false }
 ) {
   // Get the milestone's title, id, and PRs.
   const { title, id } = await getMilestoneId(milestone)