diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/GroupSummaryMapper.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/GroupSummaryMapper.kt
index 5ab97d8050..44cbf2998d 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/GroupSummaryMapper.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/GroupSummaryMapper.kt
@@ -22,15 +22,15 @@ import im.vector.matrix.android.internal.database.model.GroupSummaryEntity
 
 internal object GroupSummaryMapper {
 
-    fun map(roomSummaryEntity: GroupSummaryEntity): GroupSummary {
+    fun map(groupSummaryEntity: GroupSummaryEntity): GroupSummary {
         return GroupSummary(
-                roomSummaryEntity.groupId,
-                roomSummaryEntity.membership,
-                roomSummaryEntity.displayName,
-                roomSummaryEntity.shortDescription,
-                roomSummaryEntity.avatarUrl,
-                roomSummaryEntity.roomIds.toList(),
-                roomSummaryEntity.userIds.toList()
+                groupSummaryEntity.groupId,
+                groupSummaryEntity.membership,
+                groupSummaryEntity.displayName,
+                groupSummaryEntity.shortDescription,
+                groupSummaryEntity.avatarUrl,
+                groupSummaryEntity.roomIds.toList(),
+                groupSummaryEntity.userIds.toList()
         )
     }
 }
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt
index e92df8067b..5de3a85409 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt
@@ -47,15 +47,16 @@ internal class GroupSummaryUpdater @Inject constructor(private val context: Cont
         val modifiedGroupEntity = (changeSet.insertions + changeSet.changes)
                 .asSequence()
                 .mapNotNull { results[it] }
-                .toList()
 
         fetchGroupsData(modifiedGroupEntity
                 .filter { it.membership == Membership.JOIN || it.membership == Membership.INVITE }
-                .map { it.groupId })
+                .map { it.groupId }
+                .toList())
 
         deleteGroups(modifiedGroupEntity
                 .filter { it.membership == Membership.LEAVE }
-                .map { it.groupId })
+                .map { it.groupId }
+                .toList())
     }
 
     private fun fetchGroupsData(groupIds: List<String>) {