diff --git a/matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/CryptoStoreHelper.kt b/matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/CryptoStoreHelper.kt
index ba1afd4758..48cfbebe5b 100644
--- a/matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/CryptoStoreHelper.kt
+++ b/matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/CryptoStoreHelper.kt
@@ -21,6 +21,7 @@ import org.matrix.android.sdk.internal.crypto.store.IMXCryptoStore
 import org.matrix.android.sdk.internal.crypto.store.db.RealmCryptoStore
 import org.matrix.android.sdk.internal.crypto.store.db.RealmCryptoStoreModule
 import org.matrix.android.sdk.internal.crypto.store.db.mapper.CrossSigningKeysMapper
+import org.matrix.android.sdk.internal.crypto.store.db.mapper.MyDeviceLastSeenInfoEntityMapper
 import org.matrix.android.sdk.internal.di.MoshiProvider
 import org.matrix.android.sdk.internal.util.time.DefaultClock
 import kotlin.random.Random
@@ -37,6 +38,7 @@ internal class CryptoStoreHelper {
                 userId = "userId_" + Random.nextInt(),
                 deviceId = "deviceId_sample",
                 clock = DefaultClock(),
+                myDeviceLastSeenInfoEntityMapper = MyDeviceLastSeenInfoEntityMapper()
         )
     }
 }