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 9912484e13f..13243623a96 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
@@ -94,6 +94,8 @@ class KotlinScriptConfigurationManager(
         // TODO: it seems invokeLater leads to inconsistent behaviour (at least in tests)
         ApplicationManager.getApplication().invokeLater {
             runWriteAction {
+                if (project.isDisposed) return@runWriteAction
+
                 ProjectRootManagerEx.getInstanceEx(project)?.makeRootsChange(EmptyRunnable.getInstance(), false, true)
                 dumbService.runWhenSmart {
                     ScriptDependenciesModificationTracker.getInstance(project).incModificationCount()