diff --git a/manual-tests/Preview.txt b/manual-tests/Preview.txt
index 4286d48f8..b05a07877 100644
--- a/manual-tests/Preview.txt
+++ b/manual-tests/Preview.txt
@@ -155,10 +155,10 @@ Expected Result:
 
 Two highlighted action buttons
 ------------------------------
-This tests that it's not possible to have two highlighted preview action button.
+This tests that it's not possible to have two highlighted preview action buttons.
 
 Setup:
-#. Open dash
+#. Open dash.
 #. Open Files Lens.
 #. Right-click the mouse on an icon (don't use folder icons because they have just one action button).
 #. Wait for the preview window to open and finish animating.