diff --git a/bit_manipulation/hamming_distance.cpp b/bit_manipulation/hamming_distance.cpp
index b47e81ff2..f860b67fb 100644
--- a/bit_manipulation/hamming_distance.cpp
+++ b/bit_manipulation/hamming_distance.cpp
@@ -11,7 +11,6 @@
  */
 
 #include <iostream>  /// for io operations
-using std::cout, std::endl;
 
 unsigned int bitCount(unsigned int value) {
     unsigned int count = 0;