diff --git a/rcl/src/rcl/wait.c b/rcl/src/rcl/wait.c
index 33ebf14..12ff30b 100644
--- a/rcl/src/rcl/wait.c
+++ b/rcl/src/rcl/wait.c
@@ -35,6 +35,7 @@ typedef struct rcl_wait_set_impl_t
   rmw_subscriptions_t rmw_subscriptions;
   size_t guard_condition_index;
   rmw_guard_conditions_t rmw_guard_conditions;
+  rmw_waitset_t * rmw_waitset;
   size_t timer_index;
   rcl_allocator_t allocator;
 } rcl_wait_set_impl_t;
@@ -113,6 +114,9 @@ rcl_wait_set_init(
   wait_set->impl->rmw_subscriptions.subscriber_count = 0;
   wait_set->impl->rmw_guard_conditions.guard_conditions = NULL;
   wait_set->impl->rmw_guard_conditions.guard_condition_count = 0;
+  wait_set->impl->rmw_waitset = rmw_create_waitset(
+    NULL, 2*number_of_subscriptions + number_of_guard_conditions);
+
   // Initialize subscription space.
   rcl_ret_t ret;
   if ((ret = rcl_wait_set_resize_subscriptions(wait_set, number_of_subscriptions)) != RCL_RET_OK) {
@@ -409,6 +413,7 @@ rcl_wait(rcl_wait_set_t * wait_set, int64_t timeout)
     &wait_set->impl->rmw_guard_conditions,
     &dummy_services,
     &dummy_clients,
+    wait_set->impl->rmw_waitset,
     timeout_argument);
   // Check for error.
   if (ret != RMW_RET_OK) {