diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/SyncResponsePostTreatmentAggregator.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/SyncResponsePostTreatmentAggregator.kt
index 2e1863a034..ab6907d9e8 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/SyncResponsePostTreatmentAggregator.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/sync/SyncResponsePostTreatmentAggregator.kt
@@ -23,7 +23,7 @@ internal class SyncResponsePostTreatmentAggregator {
     // Map of roomId to directUserId
     val directChatsToCheck = mutableMapOf<String, String>()
 
-    // List of userIds to fetch and update at the end of incremental syncs
+    // Set of userIds to fetch and update at the end of incremental syncs
     val userIdsToFetch = mutableSetOf<String>()
 
     // Set of users to call `crossSigningService.onUsersDeviceUpdate` once per sync