diff --git a/nano/test_common/rate_observer.hpp b/nano/test_common/rate_observer.hpp
index 457613b91..0800a5a64 100644
--- a/nano/test_common/rate_observer.hpp
+++ b/nano/test_common/rate_observer.hpp
@@ -2,6 +2,7 @@
 
 #include <nano/lib/stats.hpp>
 
+#include <atomic>
 #include <chrono>
 #include <string>
 #include <thread>