diff --git a/HW10/MakePermutationMatrix.cpp b/HW10/MakePermutationMatrix.cpp
index 91d9adc..7eb71ad 100644
--- a/HW10/MakePermutationMatrix.cpp
+++ b/HW10/MakePermutationMatrix.cpp
@@ -48,7 +48,7 @@ std::vector<double> MakePermutationMatrix::MakePermutation(std::vector<City> sou
         //Push permutation cost to the localCostVector.
         localCostVector.push_back(cost);
         counter++;
-    } while (std::next_permutation(myPerm.begin(), myPerm.end()));
+    } while (std::next_permutation(myPerm.begin(), myPerm.end()) && myPerm!=nextPerm);
 }
 //    //find the lowest and add it to a lowest vector.
 //    auto lowest = std::vector<double>(1,localCostVector[0]);