diff --git a/OneLoneCoder_PGE_Balls2.cpp b/OneLoneCoder_PGE_Balls2.cpp
index 1ffab4e..e66b75e 100644
--- a/OneLoneCoder_PGE_Balls2.cpp
+++ b/OneLoneCoder_PGE_Balls2.cpp
@@ -68,7 +68,7 @@ David Barr, aka javidx9, ©OneLoneCoder 2018
 #include <algorithm>
 using namespace std;
 
-#define NOMINMAX
+#define OLC_PGE_APPLICATION
 #include "olcPixelGameEngine.h"
 
 struct sBall