diff --git a/ch02/genetic.py b/ch02/genetic.py
index d9e5cc3..e4f65fc 100644
--- a/ch02/genetic.py
+++ b/ch02/genetic.py
@@ -15,6 +15,7 @@
 # implied.  See the License for the specific language governing
 # permissions and limitations under the License.
 #segundo ejemplo de commit
+#arrreglo de bug 3.1
 import random
 import statistics
 import sys