diff --git a/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java b/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java
index 02871ec3b..2df59fc5b 100644
--- a/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java
+++ b/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java
@@ -29,6 +29,7 @@ public class NullPredicateTest extends AbstractPredicateTest {
         assertTrue(nullPredicate(), null);
     }
 
+    @Test
     public void ensurePredicateCanBeTypedWithoutWarning() throws Exception {
         final Predicate<String> predicate = NullPredicate.nullPredicate();
         assertFalse(predicate, cString);