diff --git a/DescriptorManager.cpp b/DescriptorManager.cpp
index fc1c510..913b3aa 100644
--- a/DescriptorManager.cpp
+++ b/DescriptorManager.cpp
@@ -173,6 +173,7 @@ void DescriptorManager::rankMutations(string image_name, int method) {
 		unsigned long long d = descriptor_types[method]->distance(target, b1);
 		pair<unsigned long long, string> p(d, mutators[i]->ToString());
 		local_distance.insert(p);
+		upper_bound
 	}
 
 	//cout << "..." << endl;