diff --git a/libft/FT_SPLIT_TESTER.patch b/libft/FT_SPLIT_TESTER.patch
new file mode 100644
index 0000000..570d815
--- /dev/null
+++ b/libft/FT_SPLIT_TESTER.patch
@@ -0,0 +1,39 @@
+--- a/Makefile
++++ b/Makefile
+@@ -14,7 +14,7 @@ CC				=	gcc
+ 
+ CFLAGS			=	-Wall -Wextra -Werror
+ 
+-SRC 			=	../*.c \
++SRC 			=	../libft/ft_split.c ../libft/ft_bzero.c ../libft/ft_calloc.c ../libft/ft_memcpy.c ../libft/ft_memset.c ../libft/ft_strlen.c \
+ 					ft_compare_results.c \
+ 					ft_mem_count.c \
+ 					ft_my_split.c \
+--- a/ft.h
++++ b/ft.h
+@@ -13,15 +13,24 @@
+ #ifndef FT_H
+ # define FT_H
+ 
++#include <ctype.h>
++
+ //for MacOS, MALLOC_SIZE_FUNCTION Macro should be malloc_size 
+ //for Windows, MALLOC_SIZE_FUNCTION Macro should be _msize 
+ //for GLIBC systems, MALLOC_SIZE_FUNCTION Macro should be malloc_usable_size
++#ifdef __GNU_LIBRARY__
++#define MALLOC_SIZE_FUNCTION malloc_usable_size
++#else
+ #define MALLOC_SIZE_FUNCTION malloc_size
++#endif
+ 
+ //For Windows/GLIBC next #include should be "#include <malloc/malloc.h>" 
+ //For MacOs next #include should be #include <malloc.h> 
++#ifdef __GNU_LIBRARY__
++#include <malloc.h>
++#else
+ #include <malloc/malloc.h>
+-
++#endif
+ 
+ //Includes
+ #include <stdio.h>
diff --git a/libft/Makefile b/libft/Makefile
index 583a65a..3d3a0d3 100644
--- a/libft/Makefile
+++ b/libft/Makefile
@@ -119,6 +119,7 @@ e: fast _libft-unit-test
 	@make -C libft-unit-test b || true
 
 _FT_SPLIT_TESTER:
+	@patch -d FT_SPLIT_TESTER -p1 --dry-run < FT_SPLIT_TESTER.patch >/dev/null 2>&1 && patch -d FT_SPLIT_TESTER -p1 < FT_SPLIT_TESTER.patch || true
 	@grep -q '../*.c' FT_SPLIT_TESTER/Makefile && sed -i'.orig' -e 's/\.\.\/\*\.c/..\/libft\/ft_split.c ..\/libft\/ft_bzero.c ..\/libft\/ft_calloc.c ..\/libft\/ft_memcpy.c ..\/libft\/ft_memset.c ..\/libft\/ft_strlen.c/' FT_SPLIT_TESTER/Makefile || true
 
 f: compile _FT_SPLIT_TESTER