diff --git a/trunk/paradiseo-mo/src/problems/eval/moUBQPSimpleIncrEval.h b/trunk/paradiseo-mo/src/problems/eval/moUBQPSimpleIncrEval.h
index a4fdef10b..78e6be0f5 100644
--- a/trunk/paradiseo-mo/src/problems/eval/moUBQPSimpleIncrEval.h
+++ b/trunk/paradiseo-mo/src/problems/eval/moUBQPSimpleIncrEval.h
@@ -31,7 +31,7 @@ Contact: paradiseo-help@lists.gforge.inria.fr
 #define _moUBQPSimpleIncrEval_H
 
 #include <eval/moEval.h>
-#include <eval/UbqpEval.h>
+#include <eval/ubqpEval.h>
 
 /**
  * Incremental evaluation Function for the UBQPSimple problem
@@ -77,6 +77,24 @@ public:
 
   }
 
+  /*
+   * to get the matrix Q
+   *
+   * @return matrix Q
+   */
+  int** getQ() {
+    return Q;
+  }
+
+  /*
+   * to get the number of variable (bit string length)
+   *
+   * @return bit string length
+   */
+  int getNbVar() {
+    return n;
+  }
+
 private:
   // number of variables
   int n;