diff --git a/Makefile b/Makefile
index 4725ecc..66b5ad2 100644
--- a/Makefile
+++ b/Makefile
@@ -42,6 +42,7 @@ LIBFT_FLAGS = -lft -L $(LIBFT_FOLDER)
 
 MLX_FLAGS = -lmlx -lXext -lX11 -L $(MLX_FOLDER)
 
+OTHER_FLAGS = -lm
 
 LIBFT_FOLDER = ./libft/
 
@@ -56,7 +57,7 @@ CC = gcc
 all: $(NAME)
 
 $(NAME): $(OBJ) $(LIBFT_FOLDER)$(LIBFT) $(MLX_FOLDER)$(MLX)
-	$(CC) $(FLAGS) $(OBJ) $(LIBFT_FLAGS) $(MLX_FLAGS) -o $(NAME)
+	$(CC) $(OBJ) $(FLAGS) $(LIBFT_FLAGS) $(MLX_FLAGS) $(OTHER_FLAGS) -o $(NAME)
 
 $(OBJDIR)%.o : $(SRCDIR)%.c
 	$(CC) $(FLAGS) $(INC) -c $< -o $@  
diff --git a/inc/fdf.h b/inc/fdf.h
index a428bf3..3946f85 100644
--- a/inc/fdf.h
+++ b/inc/fdf.h
@@ -3,7 +3,7 @@
 // FILE:     inc/fdf.h
 // ROLE:     to rule them all
 // CREATED:  2017-02-13 20:07:04
-// MODIFIED: 2017-02-13 20:28:14
+// MODIFIED: 2017-02-18 01:11:28
 
 
 #ifndef FDF_H