diff --git a/src/util.h b/src/util.h
index 9b7e2573da2..4ff128bb42f 100644
--- a/src/util.h
+++ b/src/util.h
@@ -22,6 +22,7 @@ typedef int pid_t; /* define for Windows compatibility */
 #include <vector>
 #include <string>
 
+#include <boost/version.hpp>
 #include <boost/thread.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/path.hpp>