diff --git a/entity.hh b/entity.hh
index 88f393b..946e9c2 100644
--- a/entity.hh
+++ b/entity.hh
@@ -3,8 +3,6 @@
 
 #include <ACGL/Math/Math.hh>
 
-#endif
-
 class Entity {
     public:
         Entity(glm::vec3 position, glm::vec3 rotation);
@@ -17,3 +15,5 @@ class Entity {
         glm::vec3 position;
         glm::vec3 rotation;
 };
+
+#endif
diff --git a/level.hh b/level.hh
index e974136..55d2bf7 100644
--- a/level.hh
+++ b/level.hh
@@ -4,8 +4,6 @@
 #include <string>
 #include "entity.hh"
 
-#endif
-
 class Level {
     public:
         Level(std::string filePath);
@@ -15,3 +13,5 @@ class Level {
         std::string filePath;
         std::vector<Entity> entities;
 };
+
+#endif
diff --git a/physics.hh b/physics.hh
index 139597f..3b5ce1a 100644
--- a/physics.hh
+++ b/physics.hh
@@ -1,2 +1,4 @@
+#ifndef PHYSICS_HH_INCLUDED
+#define PHYSICS_HH_INCLUDED
 
-
+#endif