diff --git a/tests/daemon/global-io-fixture.cpp b/tests/daemon/global-io-fixture.cpp
index e4f40fe..3a85e29 100644
--- a/tests/daemon/global-io-fixture.cpp
+++ b/tests/daemon/global-io-fixture.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2019,  Regents of the University of California,
+ * Copyright (c) 2014-2020,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -52,9 +52,10 @@
   return g_io.poll();
 }
 
-GlobalIoTimeFixture::GlobalIoTimeFixture()
-  : ClockFixture(g_io)
+void
+GlobalIoTimeFixture::afterTick()
 {
+  pollIo();
 }
 
 } // namespace tests