diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryUpdater.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryUpdater.kt
index 3ec37379be..9137bf5626 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryUpdater.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryUpdater.kt
@@ -264,7 +264,7 @@ internal class RoomSummaryUpdater @Inject constructor(
                                 .map { parentInfo ->
                                     // Is it a valid parent relation?
                                     // Check if it's a child of the parent?
-                                    var isValidRelation = false
+                                    val isValidRelation: Boolean
                                     val parent = lookupMap.firstNotNullOfOrNull { if (it.key.roomId == parentInfo.roomId) it.value else null }
                                     if (parent?.firstOrNull { it.roomId == lookedUp.roomId } != null) {
                                         // there is a corresponding m.space.child event in the claimed parent