diff --git a/Entity.cpp b/Entity.cpp
index 51efb39..78893fc 100644
--- a/Entity.cpp
+++ b/Entity.cpp
@@ -1,8 +1,6 @@
 #include "Entity.h"
-
+#include "cmath"
 #include <GL/freeglut.h>
-#include <tgmath.h>
-
 #include "Model.h"