diff --git a/src/main/java/org/apache/commons/math3/genetics/Chromosome.java b/src/main/java/org/apache/commons/math3/genetics/Chromosome.java
index f12f5bd72..83c38153b 100644
--- a/src/main/java/org/apache/commons/math3/genetics/Chromosome.java
+++ b/src/main/java/org/apache/commons/math3/genetics/Chromosome.java
@@ -59,7 +59,7 @@ public abstract class Chromosome implements Comparable<Chromosome>,Fitness {
      * </ul>
      */
     public int compareTo(final Chromosome another) {
-        return ((Double)this.getFitness()).compareTo(another.getFitness());
+        return Double.compare(getFitness(), another.getFitness());
     }
 
     /**