diff --git a/ipaacalib/cpp/include/ipaaca/ipaaca.h b/ipaacalib/cpp/include/ipaaca/ipaaca.h
index 9906354cf52d26e377ce4f17268fac6933229437..340b5c20999965000fef0ed072e21d2e6517f0d9 100644
--- a/ipaacalib/cpp/include/ipaaca/ipaaca.h
+++ b/ipaacalib/cpp/include/ipaaca/ipaaca.h
@@ -47,7 +47,8 @@
 
 #include <iostream>
 
-//#include <boost/thread.hpp>
+#include <boost/bind.hpp>
+#include <boost/function.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/pointer_cast.hpp>
 #include <boost/lexical_cast.hpp>