diff --git a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDependenciesCache.kt b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDependenciesCache.kt
index e7cb2b5e110..ce2c8f7c6e0 100644
--- a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDependenciesCache.kt
+++ b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDependenciesCache.kt
@@ -81,7 +81,7 @@ class ScriptDependenciesCache(private val project: Project) {
         ScriptDependenciesModificationTracker.getInstance(project).incModificationCount()
 
         launch(EDT(project)) {
-            files.forEach {
+            files.filter { it.isValid }.forEach {
                 PsiManager.getInstance(project).findFile(it)?.let { psiFile ->
                     DaemonCodeAnalyzer.getInstance(project).restart(psiFile)
                 }