diff --git a/src/tests/clutter/conform/meson.build b/src/tests/clutter/conform/meson.build
index 8f4276382..093686329 100644
--- a/src/tests/clutter/conform/meson.build
+++ b/src/tests/clutter/conform/meson.build
@@ -56,7 +56,6 @@ test_env.set('G_TEST_SRCDIR', meson.current_source_dir())
 test_env.set('G_TEST_BUILDDIR', meson.current_build_dir())
 test_env.set('G_ENABLE_DIAGNOSTIC', '0')
 test_env.set('CLUTTER_ENABLE_DIAGNOSTIC', '0')
-test_env.set('CLUTTER_SCALE', '1')
 test_env.set('MUTTER_TEST_PLUGIN_PATH', '@0@'.format(default_plugin.full_path()))
 
 foreach test : clutter_conform_tests