diff --git a/server/boot/challenge.js b/server/boot/challenge.js
index feea89818a..cbcc47e614 100644
--- a/server/boot/challenge.js
+++ b/server/boot/challenge.js
@@ -38,9 +38,10 @@ function updateUserProgress(user, challengeId, completedChallenge) {
     return id === challengeId;
   });
 
-  if (alreadyCompleted) {
+  if (!alreadyCompleted) {
     user.progressTimestamps.push({
-      timestamp: Date.now()
+      timestamp: Date.now(),
+      completedChallenge
     });
   }
   user.completedChallenges.push(completedChallenge);