diff --git a/tests/mini/sync2.d b/tests/mini/sync2.d
index a2b2190d..30358a27 100644
--- a/tests/mini/sync2.d
+++ b/tests/mini/sync2.d
@@ -4,7 +4,12 @@ class Lock
 {
 }
 
-Lock lock;
+const Lock lock;
+
+static this()
+{
+    lock = new Lock;
+}
 
 void main()
 {