diff --git a/trunk/paradiseo-mo/src/mo.h b/trunk/paradiseo-mo/src/mo.h
index f4b1f02d0..2b05e7970 100755
--- a/trunk/paradiseo-mo/src/mo.h
+++ b/trunk/paradiseo-mo/src/mo.h
@@ -161,6 +161,7 @@
 #include <problems/eval/moMaxSATincrEval.h>
 #include <problems/eval/moOneMaxIncrEval.h>
 #include <problems/eval/moRoyalRoadIncrEval.h>
+#include <problems/eval/moUBQPSimpleIncrEval.h>
 #include <problems/eval/oneMaxFullEval.h>
 #include <problems/permutation/moShiftNeighbor.h>
 #include <problems/permutation/moSwapNeighbor.h>