diff --git a/include/TachSensor.hpp b/include/TachSensor.hpp
index 0e3a837..c91e21f 100644
--- a/include/TachSensor.hpp
+++ b/include/TachSensor.hpp
@@ -4,6 +4,7 @@
 
 #include <systemd/sd-journal.h>
 
+#include <boost/asio/streambuf.hpp>
 #include <boost/container/flat_map.hpp>
 #include <boost/container/flat_set.hpp>
 #include <gpiod.hpp>