diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ac28d2..c27724b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,13 +6,7 @@ add_library(chessarbiter SHARED src/Piece.cpp src/Board.cpp src/Fen.cpp src/Ches
 include_directories(src/)
 
 # Includes
-set(CHESSARBITER_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/includes) # For conveniance
-set(CHESSARBITER_INCLUDE_DIR ${CHESSARBITER_INCLUDE_DIR} PARENT_SCOPE) # To be used by other projects with add_subdirectory()
-file(MAKE_DIRECTORY ${CHESSARBITER_INCLUDE_DIR})
-configure_file(src/Piece.hpp ${CHESSARBITER_INCLUDE_DIR}/pgnp.hpp COPYONLY)
-configure_file(src/Board.hpp ${CHESSARBITER_INCLUDE_DIR} COPYONLY)
-configure_file(src/Fen.hpp ${CHESSARBITER_INCLUDE_DIR} COPYONLY)
-configure_file(src/ChessArbiter.hpp ${CHESSARBITER_INCLUDE_DIR} COPYONLY)
+set(CHESSARBITER_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src PARENT_SCOPE) # To be used by other projects with add_subdirectory()
 
 # Unit tests
 enable_testing()
diff --git a/src/ChessArbiter.hpp b/src/ChessArbiter.hpp
index 488ca7c..09d8295 100644
--- a/src/ChessArbiter.hpp
+++ b/src/ChessArbiter.hpp
@@ -1,3 +1,4 @@
+#pragma once
 #include "Board.hpp"
 #include "Fen.hpp"
 #include <iostream>
@@ -46,4 +47,4 @@ public:
   bool IsDrawByRepetitions();
   bool IsDraw();
 };
-} // namespace chessarbiter
\ No newline at end of file
+} // namespace chessarbiter