diff --git a/taskcluster/ci/test/tests.yml b/taskcluster/ci/test/tests.yml
index 9e2062a76ad3..ac6506bb47d2 100644
--- a/taskcluster/ci/test/tests.yml
+++ b/taskcluster/ci/test/tests.yml
@@ -328,6 +328,7 @@ jsreftest:
             android-4.3-arm7-api-15/debug: 100
             android.*: 40
             windows.*: 2
+            linux64-ccov/.*: 5
             linux64-qr/.*: 4
             macosx.*: 2
             default: 3