diff --git a/ecal/tests/cpp/util_test/src/util_gettopics.cpp b/ecal/tests/cpp/util_test/src/util_gettopics.cpp
index 2665df9924..112234d018 100644
--- a/ecal/tests/cpp/util_test/src/util_gettopics.cpp
+++ b/ecal/tests/cpp/util_test/src/util_gettopics.cpp
@@ -21,6 +21,7 @@
 
 #include <gtest/gtest.h>
 
+#include <atomic>
 #include <chrono>
 #include <memory>
 #include <thread>