diff --git a/test-cases/sdk-vb-fullscreen.yaml b/test-cases/sdk-vb-fullscreen.yaml
index 3e7f666ce542eeedf9019d8363722f428a7ff323..f9b98addc16c37663d609f77a5d5fc9240402caa 100644
--- a/test-cases/sdk-vb-fullscreen.yaml
+++ b/test-cases/sdk-vb-fullscreen.yaml
@@ -12,7 +12,9 @@ metadata:
   maintainer: "Apertis Project"
   description: "Tests that the SDK VM can be fullscreened in VirtualBox.
                 Development environment: ensuring that the VirtualBox SDK provides
-                a seamless experience."
+                a seamless experience.
+                Check that when fullscreened the output is not stretched, even for
+                accelerated contents."
 
   pre-conditions:
     - "For SDK image: Remember, we're now requiring VirtualBox 4.2.2 for tests
@@ -23,7 +25,13 @@ metadata:
 
   expected:
     - "The screen is correctly resized when switching to fullscreen."
-    - "test-text displays test glyphs inside the Xephyr window."
+    - "MiniBrowser shows a blue square on grey background inside the Xephyr window."
+    - "Check that the blue shape is a square and is not stretched in any way."
+
+install:
+  git-repos:
+    - url: https://gitlab.apertis.org/tests/webkit2gtk.git
+      branch: 'apertis/v2020pre'
 
 run:
   steps:  
@@ -32,4 +40,4 @@ run:
     - "Open a terminal"
     - "Launch a program using GLX under Xephyr:"
     - $ Xephyr :1 -host-cursor -screen 800x480x24 -ac &
-    - $ DISPLAY=:1 /usr/lib/clutter-1.0/installed-tests/clutter/test-text
+    - $ DISPLAY=:1 /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/MiniBrowser webkit2gtk/webgl-square.html