diff --git a/ambed/main.h b/ambed/main.h
index 09b501b..7453eb4 100644
--- a/ambed/main.h
+++ b/ambed/main.h
@@ -31,6 +31,7 @@
 #include <map>
 #include <queue>
 #include <chrono>
+#include <thread>
 #include <future>
 #include <atomic>
 #include <mutex>