diff --git a/etc/taskcluster/decision_task.py b/etc/taskcluster/decision_task.py
index bbe797bc4f0..6de1fce4db9 100644
--- a/etc/taskcluster/decision_task.py
+++ b/etc/taskcluster/decision_task.py
@@ -175,6 +175,7 @@ def linux_tidy_unit_docs():
             ./mach build --dev
             ./mach test-unit
             ./mach package --dev
+            ./mach build --dev --features raqote_backend
             ./mach build --dev --libsimpleservo
             ./mach build --dev --no-default-features --features default-except-unstable
             ./mach test-tidy --no-progress --self-test