diff --git a/tests/php/Forms/NullableFieldTests.php b/tests/php/Forms/NullableFieldTest.php
similarity index 99%
rename from tests/php/Forms/NullableFieldTests.php
rename to tests/php/Forms/NullableFieldTest.php
index 8cb1dd8ef4c..7789924fc44 100644
--- a/tests/php/Forms/NullableFieldTests.php
+++ b/tests/php/Forms/NullableFieldTest.php
@@ -11,7 +11,7 @@
  *
  * @author Pete Bacon Darwin
  */
-class NullableFieldTests extends SapphireTest
+class NullableFieldTest extends SapphireTest
 {
 
     /**