diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptCompilation.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptCompilation.kt
index e8900ea1130..b3733cdc061 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptCompilation.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptCompilation.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -44,6 +44,10 @@ open class ScriptCompilationConfiguration(baseConfigurations: Iterable<ScriptCom
         return if (newConfiguration == this) this
         else newConfiguration
     }
+
+    override fun toString(): String {
+        return "ScriptCompilationConfiguration($providedProperties)"
+    }
 }
 
 /**
diff --git a/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/definitions/ScriptDefinition.kt b/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/definitions/ScriptDefinition.kt
index b001b0c5a14..37a46c68bcf 100644
--- a/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/definitions/ScriptDefinition.kt
+++ b/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/definitions/ScriptDefinition.kt
@@ -48,6 +48,10 @@ abstract class ScriptDefinition : UserDataHolderBase() {
     inline fun <reified T : KotlinScriptDefinition> asLegacyOrNull(): T? =
         if (this is FromLegacy) legacyDefinition as? T else null
 
+    override fun toString(): String {
+        return "ScriptDefinition($name)"
+    }
+
     @Suppress("OverridingDeprecatedMember", "DEPRECATION")
     open class FromLegacy(
         override val hostConfiguration: ScriptingHostConfiguration,
diff --git a/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/resolve/refineCompilationConfiguration.kt b/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/resolve/refineCompilationConfiguration.kt
index 9e128cd68c3..ef149c8b59e 100644
--- a/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/resolve/refineCompilationConfiguration.kt
+++ b/plugins/scripting/scripting-compiler-impl/src/org/jetbrains/kotlin/scripting/resolve/refineCompilationConfiguration.kt
@@ -152,6 +152,10 @@ abstract class ScriptCompilationConfigurationWrapper(val script: SourceCode) {
             super.equals(other) && other is FromCompilationConfiguration && configuration == other.configuration
 
         override fun hashCode(): Int = super.hashCode() + 23 * (configuration?.hashCode() ?: 1)
+
+        override fun toString(): String {
+            return "FromCompilationConfiguration($configuration)"
+        }
     }
 
     @Suppress("OverridingDeprecatedMember", "DEPRECATION")
@@ -200,6 +204,10 @@ abstract class ScriptCompilationConfigurationWrapper(val script: SourceCode) {
             super.equals(other) && other is FromLegacy && legacyDependencies == other.legacyDependencies
 
         override fun hashCode(): Int = super.hashCode() + 31 * (legacyDependencies?.hashCode() ?: 1)
+
+        override fun toString(): String {
+            return "FromLegacy($legacyDependencies)"
+        }
     }
 }