diff --git a/tests/drm-smoke-test.c b/tests/drm-smoke-test.c
index 10e4bd2ea..c662afddb 100644
--- a/tests/drm-smoke-test.c
+++ b/tests/drm-smoke-test.c
@@ -37,6 +37,7 @@ fixture_setup(struct weston_test_harness *harness)
 	setup.shell = SHELL_TEST_DESKTOP;
 	setup.backend = WESTON_BACKEND_DRM;
 	setup.renderer = WESTON_RENDERER_PIXMAN;
+	setup.logging_scopes = "log,drm-backend";
 
 	return weston_test_harness_execute_as_client(harness, &setup);
 }
diff --git a/tests/drm-writeback-screenshot-test.c b/tests/drm-writeback-screenshot-test.c
index 94f5c7849..8a261ecf3 100644
--- a/tests/drm-writeback-screenshot-test.c
+++ b/tests/drm-writeback-screenshot-test.c
@@ -38,6 +38,7 @@ fixture_setup(struct weston_test_harness *harness)
 	setup.backend = WESTON_BACKEND_DRM;
 	setup.renderer = WESTON_RENDERER_PIXMAN;
 	setup.shell = SHELL_TEST_DESKTOP;
+	setup.logging_scopes = "log,drm-backend";
 
 	weston_ini_setup(&setup,
 			 cfgln("[shell]"),