diff --git a/hw/unit_tests/generic_queue/vl_simulator.h b/hw/unit_tests/generic_queue/vl_simulator.h
index a00886c3..16486adf 100644
--- a/hw/unit_tests/generic_queue/vl_simulator.h
+++ b/hw/unit_tests/generic_queue/vl_simulator.h
@@ -55,7 +55,7 @@ public:
     return ticks;
   }
 
-  auto operator->() {
+  T* operator->() {
     return &top_;
   }
 };