diff --git a/subprojects/nemora-postd/src/host_manager.hpp b/subprojects/nemora-postd/src/host_manager.hpp
index 6ed2a33..8f1c7fd 100644
--- a/subprojects/nemora-postd/src/host_manager.hpp
+++ b/subprojects/nemora-postd/src/host_manager.hpp
@@ -22,6 +22,7 @@
 #include <mutex>
 #include <queue>
 #include <string>
+#include <thread>
 #include <unordered_map>
 #include <vector>