diff --git a/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/UserSessionScope.kt b/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/UserSessionScope.kt
index 08c2a5bb477..376b4fb5b11 100644
--- a/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/UserSessionScope.kt
+++ b/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/UserSessionScope.kt
@@ -996,7 +996,8 @@ class UserSessionScope internal constructor(
             conversationGroupRepository,
             conversationRepository,
             messageRepository,
-            userRepository
+            userRepository,
+            systemMessageInserter
         )
     private val oneOnOneResolver: OneOnOneResolver
         get() = OneOnOneResolverImpl(
diff --git a/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigrator.kt b/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigrator.kt
index 5d240c9cf95..2022a62263f 100644
--- a/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigrator.kt
+++ b/logic/src/commonMain/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigrator.kt
@@ -24,6 +24,7 @@ import com.wire.kalium.logic.data.conversation.ConversationGroupRepository
 import com.wire.kalium.logic.data.conversation.ConversationRepository
 import com.wire.kalium.logic.data.id.ConversationId
 import com.wire.kalium.logic.data.message.MessageRepository
+import com.wire.kalium.logic.data.message.SystemMessageInserter
 import com.wire.kalium.logic.data.user.OtherUser
 import com.wire.kalium.logic.data.user.UserRepository
 import com.wire.kalium.logic.data.user.type.isTeammate
@@ -56,7 +57,8 @@ internal class OneOnOneMigratorImpl(
     private val conversationGroupRepository: ConversationGroupRepository,
     private val conversationRepository: ConversationRepository,
     private val messageRepository: MessageRepository,
-    private val userRepository: UserRepository
+    private val userRepository: UserRepository,
+    private val systemMessageInserter: SystemMessageInserter
 ) : OneOnOneMigrator {
 
     override suspend fun migrateToProteus(user: OtherUser): Either<CoreFailure, ConversationId> =
@@ -99,6 +101,12 @@ internal class OneOnOneMigratorImpl(
                             userId = user.id
                         ).map {
                             mlsConversation
+                        }.also {
+                            systemMessageInserter.insertProtocolChangedSystemMessage(
+                                conversationId = mlsConversation,
+                                senderUserId = user.id,
+                                protocol = Conversation.Protocol.MLS
+                            )
                         }
                     }
             }
diff --git a/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigratorTest.kt b/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigratorTest.kt
index f8249116d18..790559555ee 100644
--- a/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigratorTest.kt
+++ b/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneMigratorTest.kt
@@ -37,11 +37,9 @@ import com.wire.kalium.logic.util.arrangement.repository.UserRepositoryArrangeme
 import com.wire.kalium.logic.util.shouldFail
 import com.wire.kalium.logic.util.shouldSucceed
 import io.mockative.any
-import io.mockative.coVerify
 import io.mockative.eq
 import io.mockative.once
 import io.mockative.verify
-import io.mockative.verify
 import kotlinx.coroutines.test.runTest
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -293,7 +291,7 @@ class OneOnOneMigratorTest {
         ConversationRepositoryArrangement by ConversationRepositoryArrangementImpl(),
         ConversationGroupRepositoryArrangement by ConversationGroupRepositoryArrangementImpl(),
         UserRepositoryArrangement by UserRepositoryArrangementImpl() {
-        fun arrange() = run {
+        suspend fun arrange() = run {
             block()
             this@Arrangement to OneOnOneMigratorImpl(
                 getResolvedMLSOneOnOne = mlsOneOnOneConversationResolver,
@@ -307,6 +305,6 @@ class OneOnOneMigratorTest {
     }
 
     private companion object {
-        fun arrange(configuration: Arrangement.() -> Unit) = Arrangement(configuration).arrange()
+        suspend fun arrange(configuration: Arrangement.() -> Unit) = Arrangement(configuration).arrange()
     }
 }
diff --git a/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneResolverTest.kt b/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneResolverTest.kt
index 8625cd6ce7d..2e6ff9c4af6 100644
--- a/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneResolverTest.kt
+++ b/logic/src/commonTest/kotlin/com/wire/kalium/logic/feature/conversation/mls/OneOnOneResolverTest.kt
@@ -35,7 +35,6 @@ import com.wire.kalium.logic.util.arrangement.repository.UserRepositoryArrangeme
 import com.wire.kalium.logic.util.shouldFail
 import com.wire.kalium.logic.util.shouldSucceed
 import io.mockative.any
-import io.mockative.coVerify
 import io.mockative.eq
 import io.mockative.given
 import io.mockative.matchers.OneOfMatcher
diff --git a/logic/src/commonTest/kotlin/com/wire/kalium/logic/util/arrangement/repository/MessageRepositoryArrangement.kt b/logic/src/commonTest/kotlin/com/wire/kalium/logic/util/arrangement/repository/MessageRepositoryArrangement.kt
index 41bdaecee5a..cf5e75ee568 100644
--- a/logic/src/commonTest/kotlin/com/wire/kalium/logic/util/arrangement/repository/MessageRepositoryArrangement.kt
+++ b/logic/src/commonTest/kotlin/com/wire/kalium/logic/util/arrangement/repository/MessageRepositoryArrangement.kt
@@ -22,6 +22,7 @@ import com.wire.kalium.logic.StorageFailure
 import com.wire.kalium.logic.data.id.ConversationId
 import com.wire.kalium.logic.data.message.Message
 import com.wire.kalium.logic.data.message.MessageRepository
+import com.wire.kalium.logic.data.message.SystemMessageInserter
 import com.wire.kalium.logic.data.notification.LocalNotification
 import com.wire.kalium.logic.functional.Either
 import io.mockative.Mock
@@ -35,6 +36,9 @@ internal interface MessageRepositoryArrangement {
     @Mock
     val messageRepository: MessageRepository
 
+    @Mock
+    val systemMessageInserter: SystemMessageInserter
+
     fun withGetMessageById(
         result: Either<StorageFailure, Message>,
         messageID: Matcher<String> = any(),
@@ -65,6 +69,7 @@ internal interface MessageRepositoryArrangement {
 internal open class MessageRepositoryArrangementImpl : MessageRepositoryArrangement {
     @Mock
     override val messageRepository: MessageRepository = mock(MessageRepository::class)
+    override val systemMessageInserter = mock(SystemMessageInserter::class)
 
     override fun withGetMessageById(
         result: Either<StorageFailure, Message>,
@@ -117,3 +122,4 @@ internal open class MessageRepositoryArrangementImpl : MessageRepositoryArrangem
             .thenReturn(result)
     }
 }
+