diff --git a/Solid/EvolutionaryAlgorithm.py b/Solid/EvolutionaryAlgorithm.py
index bdedd72..d077de8 100644
--- a/Solid/EvolutionaryAlgorithm.py
+++ b/Solid/EvolutionaryAlgorithm.py
@@ -132,7 +132,7 @@ def _select_n(self, n):
         shuffle(self.population)
         total_fitness = sum(self.fitnesses)
         if total_fitness != 0:
-            probs = list([self._fitness(x) / total_fitness for x in self.population])
+            probs = list([self.fitnesses[i] / total_fitness for i in range(len(self.population))])
         else:
             return self.population[0:n]
         res = []
diff --git a/Solid/GeneticAlgorithm.py b/Solid/GeneticAlgorithm.py
index 01affd2..16c5f30 100644
--- a/Solid/GeneticAlgorithm.py
+++ b/Solid/GeneticAlgorithm.py
@@ -133,7 +133,7 @@ def _select_n(self, n):
         shuffle(self.population)
         total_fitness = sum(self.fitnesses)
         if total_fitness != 0:
-            probs = list([self._fitness(x) / total_fitness for x in self.population])
+            probs = list([self.fitnesses[i] / total_fitness for i in range(len(self.population))])
         else:
             return self.population[0:n]
         res = []