diff --git a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptDependenciesClassFinder.kt b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptDependenciesClassFinder.kt
index 2858617c5df..ca23d4043b9 100644
--- a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptDependenciesClassFinder.kt
+++ b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptDependenciesClassFinder.kt
@@ -20,7 +20,7 @@ class KotlinScriptDependenciesClassFinder(
     private val project: Project
 ) : NonClasspathClassFinder(project), KotlinSafeClassFinder {
     override fun calcClassRoots(): List<VirtualFile> = ScriptConfigurationManager.getInstance(project)
-        .getAllScriptsDependenciesClassFiles().toList()
+        .getAllScriptsDependenciesClassFiles().filter { it.isValid }.toList()
 
     override fun findClass(qualifiedName: String, scope: GlobalSearchScope): PsiClass? {
         tailrec fun findClassInner(parentQualifier: String, inners: List<String> = emptyList()): PsiClass? {