diff --git a/unsupported/test/cxx11_eventcount.cpp b/unsupported/test/cxx11_eventcount.cpp
index f16cc6f07..366df9cee 100644
--- a/unsupported/test/cxx11_eventcount.cpp
+++ b/unsupported/test/cxx11_eventcount.cpp
@@ -25,7 +25,7 @@ int rand_reentrant(unsigned int* s) {
 
 static void test_basic_eventcount()
 {
-  std::vector<EventCount::Waiter> waiters(1);
+  MaxSizeVector<EventCount::Waiter> waiters(1);
   EventCount ec(waiters);
   EventCount::Waiter& w = waiters[0];
   ec.Notify(false);
@@ -81,7 +81,7 @@ static void test_stress_eventcount()
   static const int kEvents = 1 << 16;
   static const int kQueues = 10;
 
-  std::vector<EventCount::Waiter> waiters(kThreads);
+  MaxSizeVector<EventCount::Waiter> waiters(kThreads);
   EventCount ec(waiters);
   TestQueue queues[kQueues];