diff --git a/src/TachSensor.cpp b/src/TachSensor.cpp
index 953f26c..cb3d2a8 100644
--- a/src/TachSensor.cpp
+++ b/src/TachSensor.cpp
@@ -22,6 +22,7 @@
 
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/algorithm/string/replace.hpp>
+#include <boost/asio/read_until.hpp>
 #include <boost/date_time/posix_time/posix_time.hpp>
 #include <gpiod.hpp>
 #include <sdbusplus/asio/connection.hpp>