diff --git a/src/test/unit_test/multi_runner.h b/src/test/unit_test/multi_runner.h
index f3529ca057..e9c1ed7653 100644
--- a/src/test/unit_test/multi_runner.h
+++ b/src/test/unit_test/multi_runner.h
@@ -33,6 +33,7 @@
 #include <atomic>
 #include <chrono>
 #include <numeric>
+#include <sstream>
 #include <string>
 #include <thread>
 #include <unordered_set>