diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceImportAlias/KotlinIntroduceImportAliasHandler.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceImportAlias/KotlinIntroduceImportAliasHandler.kt
index 6f110e2813a..f95efda81e9 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceImportAlias/KotlinIntroduceImportAliasHandler.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/introduceImportAlias/KotlinIntroduceImportAliasHandler.kt
@@ -64,8 +64,9 @@ object KotlinIntroduceImportAliasHandler : RefactoringActionHandler {
             val isExtension = descriptor.isExtension
             findPsiElements(project, file, descriptor).flatMap {
                 ReferencesSearch.search(it, file.useScope)
-                    .findAll()
+                    .findAll().asSequence().filter { reference -> reference.element.containingFile == file }
                     .map { reference -> UsageContext(reference as KtSimpleNameReference, isExtension = isExtension) }
+                    .toList()
             }
         }