diff --git a/alib2aux/src/access/PairSetFirst.cpp b/alib2aux/src/access/PairSetFirst.cpp
index e0e33dc5c51d3c31ebac14d86a37abffb24c95d2..9dc589832cb6af98d73923413c2cd599872163ae 100644
--- a/alib2aux/src/access/PairSetFirst.cpp
+++ b/alib2aux/src/access/PairSetFirst.cpp
@@ -5,6 +5,7 @@
  *      Author: Jan Travnicek
  */
 
+#include <object/Object.h>
 #include "PairSetFirst.h"
 
 #include <registration/AlgoRegistration.hpp>
diff --git a/alib2aux/src/access/PairSetSecond.cpp b/alib2aux/src/access/PairSetSecond.cpp
index 7d6516ba880b0f0855bc22b991264b719c55a3f2..3ed705f3b83c72d88614db3ee35567245e5f6cdd 100644
--- a/alib2aux/src/access/PairSetSecond.cpp
+++ b/alib2aux/src/access/PairSetSecond.cpp
@@ -5,6 +5,7 @@
  *      Author: Jan Travnicek
  */
 
+#include <object/Object.h>
 #include "PairSetSecond.h"
 
 #include <registration/AlgoRegistration.hpp>