diff --git a/bit_manipulation/power_of_2.cpp b/bit_manipulation/power_of_2.cpp
index 2b656c3..47de6b7 100644
--- a/bit_manipulation/power_of_2.cpp
+++ b/bit_manipulation/power_of_2.cpp
@@ -6,7 +6,7 @@
 
 bool powerOfTwo( int n )
 {
-    return  (n > 0 && !( n & ( n - 1 ) ));
+    return  n>0 && !((1<<0) & n);
 }
 
 int main()