diff --git a/algo/de/jDE.go b/algo/de/jDE.go
index 718aa0a..431d964 100644
--- a/algo/de/jDE.go
+++ b/algo/de/jDE.go
@@ -282,15 +282,9 @@ func (j *JDE) Run() {
 func (j *JDE) evaluate(pop *Population) float64 {
 	f := bench.Functions[pop.Problem]
 
-	bestIndividual := pop.Population[0].CurX
+	bestIndividual := pop.Population[pop.GetBestIdx()].CurX
 	bestSolution := f(bestIndividual)
 
-	for _, v := range pop.Population {
-		if solution := f(v.CurX); solution < bestSolution {
-			bestSolution = solution
-		}
-	}
-
 	return bestSolution
 }