diff --git a/2015/day-2/part-1.py b/2015/day-2/part-1.py
index 1461aec..70cfd90 100644
--- a/2015/day-2/part-1.py
+++ b/2015/day-2/part-1.py
@@ -7,8 +7,11 @@ count = 0
 
 for line in input.splitlines():
     [x, y, z] = sorted(map(int, line.split("x")))
-    areaX = x * y * 2
-    areaY = y * z * 2
-    areaZ = x * z * 2
-    count += areaX + areaY + areaZ + x * y
+
+    areaX = x * y
+    areaY = y * z
+    areaZ = x * z
+
+    count += (areaX + areaY + areaZ) * 2 + areaX
+
 print(count)