diff --git a/src/database/sql_database.py b/src/database/sql_database.py
index b4127b6..73484a1 100644
--- a/src/database/sql_database.py
+++ b/src/database/sql_database.py
@@ -70,7 +70,7 @@ class SQL_Database:
         # Structure the insert data
         db_chromosome_list = [(ga.current_generation,
                                   chromosome.fitness,
-                                   chromosome.__str__())
+                                   repr(chromosome))
          for chromosome in ga.population.get_chromosome_list() ]
 
         # Create sql query structure