diff --git a/core/modules/system/tests/src/Functional/UpdateSystem/README.txt b/core/modules/system/tests/src/Functional/UpdateSystem/README.txt
index c000bcab7b..d297b4e0bf 100644
--- a/core/modules/system/tests/src/Functional/UpdateSystem/README.txt
+++ b/core/modules/system/tests/src/Functional/UpdateSystem/README.txt
@@ -1,3 +1,3 @@
-This folder contains tests of the update system. Test of System module's
+This folder contains tests of the update system. Tests of System module's
 hook_update_N() and hook_post_update_NAME() implementations should be placed in
 core/modules/system/tests/src/Functional/Update.