diff --git a/dev/BUILD b/dev/BUILD
index 33e8828..3f95d37 100644
--- a/dev/BUILD
+++ b/dev/BUILD
@@ -329,6 +329,7 @@
 GwtTestSuites(
     name = "tests",
     jvm_flags = ["-ea"],
+    sharding = {"dev.CompilerTest": 12},
     srcjars = [":dev-test-code"],
     tests = GWT_DEV_TESTS,
 )