diff --git a/pkg/test_runner/lib/src/test_file.dart b/pkg/test_runner/lib/src/test_file.dart
index 34cc308dd6d..e5706c77c24 100644
--- a/pkg/test_runner/lib/src/test_file.dart
+++ b/pkg/test_runner/lib/src/test_file.dart
@@ -14,7 +14,9 @@ final _environmentRegExp = RegExp(r"// Environment=(.*)");
 final _packagesRegExp = RegExp(r"// Packages=(.*)");
 final _experimentRegExp = RegExp(r"^--enable-experiment=([a-z0-9,-]+)$");
 final _localFileRegExp = RegExp(
-    r"""^\s*(?:import(?: augment)?|part) ['"](?!package:|dart:)(.*)['"];""",
+    r"""^\s*(?:import(?: augment)?|part) """
+    r"""['"](?!package:|dart:)(.*)['"]"""
+    r"""(?: deferred as \w+)?;""",
     multiLine: true);
 
 List<String> _splitWords(String s) =>
diff --git a/tests/language/deferred/super_dependency_lib.dart b/tests/language/deferred/super_dependency_lib.dart
index 8638a4fd0b0..8a7af637d46 100644
--- a/tests/language/deferred/super_dependency_lib.dart
+++ b/tests/language/deferred/super_dependency_lib.dart
@@ -7,5 +7,8 @@ class A {}
 class C extends A {
   foo() {
     super.foo = 3;
+//        ^^^
+// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
+// [cfe] Superclass has no setter named 'foo'.
   }
 }
diff --git a/tests/language/deferred/super_dependency_test.dart b/tests/language/deferred/super_dependency_test.dart
index cf5e81176d3..0177674ce3a 100644
--- a/tests/language/deferred/super_dependency_test.dart
+++ b/tests/language/deferred/super_dependency_test.dart
@@ -7,9 +7,6 @@
 // used to cause a crash.
 
 import "package:expect/expect.dart";
-//        ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-// [cfe] Superclass has no setter named 'foo'.
 import "super_dependency_lib.dart" deferred as lib;
 
 main() async {