diff --git a/include/boost/test/included/test_exec_monitor.hpp b/include/boost/test/included/test_exec_monitor.hpp
index 1b69b3af..a4d83cc7 100644
--- a/include/boost/test/included/test_exec_monitor.hpp
+++ b/include/boost/test/included/test_exec_monitor.hpp
@@ -16,6 +16,7 @@
 #define BOOST_INCLUDED_TEST_EXEC_MONITOR_HPP_071894GER
 
 #include <boost/test/impl/compiler_log_formatter.ipp>
+#include <boost/test/impl/debug.ipp>
 #include <boost/test/impl/execution_monitor.ipp>
 #include <boost/test/impl/framework.ipp>
 #include <boost/test/impl/plain_report_formatter.ipp>