diff --git a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptConfigurationManager.kt b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptConfigurationManager.kt
index a184891640a..c416c931ec1 100644
--- a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptConfigurationManager.kt
+++ b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptConfigurationManager.kt
@@ -57,9 +57,11 @@ class KotlinScriptConfigurationManager(
         reloadScriptDefinitions()
 
         StartupManager.getInstance(project).runWhenProjectIsInitialized {
-            cacheAllScriptsExtraImports()
-            invalidateLocalCaches()
-            notifyRootsChanged()
+            DumbService.getInstance(project).smartInvokeLater {
+                cacheAllScriptsExtraImports()
+                invalidateLocalCaches()
+                notifyRootsChanged()
+            }
         }
 
         project.messageBus.connect().subscribe(VirtualFileManager.VFS_CHANGES, object : BulkFileListener.Adapter() {