diff --git a/idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/KotlinExcludeFromCompletionLookupActionProvider.kt b/idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/KotlinExcludeFromCompletionLookupActionProvider.kt
index 39180a898b5..0a7ac405ddd 100644
--- a/idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/KotlinExcludeFromCompletionLookupActionProvider.kt
+++ b/idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/KotlinExcludeFromCompletionLookupActionProvider.kt
@@ -33,7 +33,7 @@ class KotlinExcludeFromCompletionLookupActionProvider : LookupActionProvider {
     override fun fillActions(element: LookupElement, lookup: Lookup, consumer: Consumer<LookupElementAction>) {
         val lookupObject = element.`object` as? DeclarationLookupObject ?: return
 
-        val project = lookup.psiFile.project
+        val project = lookup.psiFile?.project ?: return
 
         lookupObject.importableFqName?.let {
             addExcludes(consumer, project, it.asString())