3 files changed, 3 insertions, 12 deletions
diff --git a/yage/entity/entitymanager.h b/yage/entity/entitymanager.h
index 2de5e13c..5316c955 100644
--- a/yage/entity/entitymanager.h
+++ b/yage/entity/entitymanager.h
@@ -6,8 +6,7 @@
  * ----------------------------------------------------------------------------
  */
 
-#ifndef YAGE_ENGINE_ENTITYMANAGER_H
-#define YAGE_ENGINE_ENTITYMANAGER_H
+#pragma once
 
 #include <vector>
 
@@ -76,5 +75,3 @@ private:
 };
 
 } // namespace yage
-
-#endif
diff --git a/yage/entity/space.h b/yage/entity/space.h
index 113110aa..dff2d2ce 100644
--- a/yage/entity/space.h
+++ b/yage/entity/space.h
@@ -6,8 +6,7 @@
  * ----------------------------------------------------------------------------
  */
 
-#ifndef YAGE_ENGINE_SPACE_H
-#define YAGE_ENGINE_SPACE_H
+#pragma once
 
 #include <vector>
 #include <memory>
@@ -71,5 +70,3 @@ private:
 };
 
 } // namespace yage
-
-#endif
diff --git a/yage/entity/system.h b/yage/entity/system.h
index 0ca50009..7c67ac6f 100644
--- a/yage/entity/system.h
+++ b/yage/entity/system.h
@@ -6,8 +6,7 @@
  * ----------------------------------------------------------------------------
  */
 
-#ifndef YAGE_ENGINE_SYSTEM_H
-#define YAGE_ENGINE_SYSTEM_H
+#pragma once
 
 #include <cstddef>
 
@@ -24,5 +23,3 @@ public:
 };
 
 } // namespace yage
-
-#endif