diff --git a/input/src/main/scala/fix/ApplyInfixNoParenTest.scala b/input/src/main/scala/fix/ApplyInfixNoParenTest.scala
index 5bb808d..e348bd6 100644
--- a/input/src/main/scala/fix/ApplyInfixNoParenTest.scala
+++ b/input/src/main/scala/fix/ApplyInfixNoParenTest.scala
@@ -3,4 +3,8 @@ rule = ApplyInfixNoParen
  */
 package fix
 
-trait ApplyInfixNoParenTest
+trait ApplyInfixNoParenTest {
+  def f1: Boolean = false == true && false // assert: ApplyInfixNoParen
+  def f2: Boolean = (false == true) && false // これはOK
+  def f3: Boolean = false == (true && false) // これもOK
+}