diff --git a/unittests/util/TestGlobals.cpp b/unittests/util/TestGlobals.cpp
index 3b4123040..54f8e73a9 100644
--- a/unittests/util/TestGlobals.cpp
+++ b/unittests/util/TestGlobals.cpp
@@ -21,10 +21,11 @@
 
 #include <boost/program_options/options_description.hpp>
 #include <boost/program_options/parsers.hpp>
-#include <boost/program_options/positional_options.hpp>
 #include <boost/program_options/value_semantic.hpp>
 #include <boost/program_options/variables_map.hpp>
 
+#include <string>
+
 TestGlobals&
 TestGlobals::instance()
 {