diff --git a/core/modules/simpletest/simpletest.test b/core/modules/simpletest/simpletest.test
index c65d72587bf..bd4427c99b2 100644
--- a/core/modules/simpletest/simpletest.test
+++ b/core/modules/simpletest/simpletest.test
@@ -20,7 +20,7 @@ class SimpleTestFunctionalTest extends DrupalWebTestCase {
   public static function getInfo() {
     return array(
       'name' => 'SimpleTest functionality',
-      'description' => "Test SimpleTest's web interface: check that the intended tests were run and ensure that test reports display the intended results. Also test SimpleTest's internal browser and API's both explicitly and implicitly.",
+      'description' => "Test SimpleTest's web interface: check that the intended tests were run and ensure that test reports display the intended results. Also test SimpleTest's internal browser and APIs both explicitly and implicitly.",
       'group' => 'SimpleTest'
     );
   }