diff --git a/taskcluster/ci/test/tests.yml b/taskcluster/ci/test/tests.yml
index 57d02be9ad0e..d0548035b1b0 100644
--- a/taskcluster/ci/test/tests.yml
+++ b/taskcluster/ci/test/tests.yml
@@ -907,10 +907,13 @@ mochitest-webgl:
     suite: mochitest/mochitest-gl
     treeherder-symbol: tc-M(gl)
     virtualization: virtual-with-gpu
+    worker-type:
+        by-test-platform:
+            windows10-64.*: buildbot-bridge/buildbot-bridge
+            default: null
     chunks:
         by-test-platform:
             android.*: 10
-            windows.*: 8
             default: 3
     e10s:
         by-test-platform: