diff --git a/libraries/scripting/common/src/kotlin/script/experimental/util/propertiesCollection.kt b/libraries/scripting/common/src/kotlin/script/experimental/util/propertiesCollection.kt
index e41c17de831..7c9ab38fce5 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/util/propertiesCollection.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/util/propertiesCollection.kt
@@ -76,7 +76,8 @@ open class PropertiesCollection(protected var properties: Map<Key<*>, Any?> = em
 
     fun entries(): Set<Map.Entry<Key<*>, Any?>> = properties.entries
 
-    val notTransientData: Map<Key<*>, Any?> get() = properties.filterKeys { it !is TransientKey<*> }
+    val notTransientData: Map<Key<*>, Any?>
+        get() = properties.filter { (key, value) -> key !is TransientKey<*> && value is Serializable }
 
     fun isEmpty(): Boolean = properties.isEmpty()