diff --git a/etc/taskcluster/decision_task.py b/etc/taskcluster/decision_task.py
index 3d6ba9fbdb4..612a3d0b6b0 100644
--- a/etc/taskcluster/decision_task.py
+++ b/etc/taskcluster/decision_task.py
@@ -381,7 +381,7 @@ def windows_arm64():
         windows_build_task("Dev build", package=False, arch="arm64")
         .with_treeherder("Windows arm64")
         .with_script(
-            "python mach build --dev --target aarch64-pc-windows-msvc",
+            "python mach build --dev --target aarch64-pc-windows-msvc --features raqote_backend",
         )
         .find_or_create("build.windows_arm64_dev." + CONFIG.task_id())
     )