diff --git a/build/sparse-profiles/startup-test b/build/sparse-profiles/startup-test
new file mode 100644
index 000000000000..fd73995d86d5
--- /dev/null
+++ b/build/sparse-profiles/startup-test
@@ -0,0 +1,6 @@
+%include build/sparse-profiles/mozharness
+
+[include]
+# for fetch-content
+path:taskcluster/scripts/misc/
+
diff --git a/taskcluster/ci/startup-test/kind.yml b/taskcluster/ci/startup-test/kind.yml
index f3543ec21ad9..e770bae354eb 100644
--- a/taskcluster/ci/startup-test/kind.yml
+++ b/taskcluster/ci/startup-test/kind.yml
@@ -31,7 +31,7 @@ job-defaults:
     worker:
         max-run-time: 3600
     run:
-        sparse-profile: mozharness
+        sparse-profile: startup-test
     attributes:
         build_type: opt
     treeherder: