diff --git a/testsuite/gtk/meson.build b/testsuite/gtk/meson.build
index 90aa2f8678..2afb14a3fc 100644
--- a/testsuite/gtk/meson.build
+++ b/testsuite/gtk/meson.build
@@ -57,6 +57,7 @@ test_env.set('G_TEST_BUILDDIR', meson.current_build_dir())
 test_env.set('G_ENABLE_DIAGNOSTIC', '0')
 test_env.set('GIO_USE_VFS', 'local')
 test_env.set('GSETTINGS_BACKEND', 'memory')
+test_env.set('GSK_RENDERER', 'cairo')
 
 test_cargs = []