diff --git a/host/umtrx_fifo_ctrl.hpp b/host/umtrx_fifo_ctrl.hpp
index 49721a41..3da45254 100644
--- a/host/umtrx_fifo_ctrl.hpp
+++ b/host/umtrx_fifo_ctrl.hpp
@@ -23,6 +23,7 @@
 #include <uhd/transport/zero_copy.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/utility.hpp>
+#include <boost/cstdint.hpp>
 #include <uhd/types/wb_iface.hpp>
 #include <string>