diff --git a/include/boost/test/utils/runtime/file/config_file_iterator.hpp b/include/boost/test/utils/runtime/file/config_file_iterator.hpp
index dcd92a2d..b0d4830f 100644
--- a/include/boost/test/utils/runtime/file/config_file_iterator.hpp
+++ b/include/boost/test/utils/runtime/file/config_file_iterator.hpp
@@ -26,6 +26,7 @@
 
 // Boost
 #include <boost/shared_ptr.hpp>
+#include <boost/function.hpp>
 
 namespace boost {
 
@@ -98,7 +99,7 @@ class config_file_iterator : public unit_test::input_iterator_facade<config_file
     typedef unit_test::input_iterator_facade<config_file_iterator,cstring,cstring> base;
 public:
     // Public typedefs
-    typedef boost::function<cstring ()>   command_handler;
+    typedef boost::function<void (cstring)>   command_handler;
 
     // Constructors
                     config_file_iterator() {}