--- a/host/lib/include/uhdlib/utils/compat_check.hpp
+++ b/host/lib/include/uhdlib/utils/compat_check.hpp
@@ -7,6 +7,7 @@
 #pragma once
 
 #include <cstddef>
+#include <cstdint>
 #include <string>
 
 namespace uhd {
