diff --git a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Meta.kt b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Meta.kt
index 44b05903..20cac1dd 100644
--- a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Meta.kt
+++ b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Meta.kt
@@ -4,6 +4,7 @@ import hep.dataforge.meta.MetaItem.NodeItem
 import hep.dataforge.meta.MetaItem.ValueItem
 import hep.dataforge.names.*
 import hep.dataforge.values.Value
+import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 
 
diff --git a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/MetaItem.kt b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/MetaItem.kt
index 899ca1f9..e4934ed9 100644
--- a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/MetaItem.kt
+++ b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/MetaItem.kt
@@ -3,6 +3,7 @@ package hep.dataforge.meta
 import hep.dataforge.meta.MetaItem.NodeItem
 import hep.dataforge.meta.MetaItem.ValueItem
 import hep.dataforge.values.*
+import kotlinx.serialization.Serializable
 
 /**
  * A member of the meta tree. Could be represented as one of following: