diff --git a/Algorithms/Computational Geometry/Polygons/polygonArea.cpp b/Algorithms/Computational Geometry/Polygons/polygonArea.cpp
index 409608c9..c7aef62f 100644
--- a/Algorithms/Computational Geometry/Polygons/polygonArea.cpp	
+++ b/Algorithms/Computational Geometry/Polygons/polygonArea.cpp	
@@ -1,7 +1,9 @@
 #include <iostream>
 #include <vector>
 
-#define ll long long
+// Rename ll to ingt64
+typedef long long ll;
+
 using namespace std;
 
 struct point {