diff --git a/bit_manipulation/hamming_distance.cpp b/bit_manipulation/hamming_distance.cpp
index 47f12d86f..5816aceae 100644
--- a/bit_manipulation/hamming_distance.cpp
+++ b/bit_manipulation/hamming_distance.cpp
@@ -1,6 +1,6 @@
 /**
  * @file
- * @brief Returns the Hamming distance between two integers
+ * @brief Returns the [Hamming distance](https://en.wikipedia.org/wiki/Hamming_distance) between two integers
  *
  * @details
  * To find hamming distance between two integers, we take their xor, which will
@@ -37,4 +37,4 @@ int main() {
 
     std::cout << "Hamming distance between " << a << " and " << b << " is "
          << hamming_distance(a, b) << std::endl;
-}
\ No newline at end of file
+}