diff --git a/trunk/problems/eval/nkqLandscapesEval.h b/trunk/problems/eval/nkqLandscapesEval.h
index 615b21bc3..720143566 100644
--- a/trunk/problems/eval/nkqLandscapesEval.h
+++ b/trunk/problems/eval/nkqLandscapesEval.h
@@ -200,7 +200,7 @@ protected:
    *
    */
   virtual double contribution() {
-    return ((double) rng.random(q)) / (double) q;
+    return ((double) rng.random(q)) / (double) (q-1);
   }