diff --git a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt
index 0a8efce2e41d..eaff8cab3d0d 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt
+++ b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt
@@ -66,6 +66,7 @@ private suspend fun requestRestartToCompleteEssentialHighlighting(project: Proje
   val hasFilesWithEssentialHighlightingConfigured = openFiles
     .any { file ->
       readAction {
+        if (!file.isValid) return@readAction false
         val psiFile = psiFileManager.findFile(file) ?: return@readAction false
         highlightingSettingsPerFile.getHighlightingSettingForRoot(psiFile) == FileHighlightingSetting.ESSENTIAL
       }