diff --git a/math/power_of_two.cpp b/math/power_of_two.cpp
index 4efaa2772..e662c063c 100644
--- a/math/power_of_two.cpp
+++ b/math/power_of_two.cpp
@@ -49,6 +49,8 @@ void power_of_two(int n) {
         std::cout << "No, the number " << n << " is not a power of 2";
     }
 }
+}  // namespace math
+
 
 /**
  * @brief Main function