diff --git a/src/nodejs/lambda-handlers/submission.js b/src/nodejs/lambda-handlers/submission.js
index ac68fbda..8814885f 100755
--- a/src/nodejs/lambda-handlers/submission.js
+++ b/src/nodejs/lambda-handlers/submission.js
@@ -146,7 +146,7 @@ async function reviewMethod(event, user) {
   const status = await db.submission.getState({ id });
   const stepType = status.step.type;
   let eventType;
-  if (!approve) {
+  if (approve === 'false') {
     eventType = 'review_rejected';
   } else if (stepType === 'review') {
     eventType = 'review_approved';