diff --git a/.test_mask.c.swp b/.test_mask.c.swp
new file mode 100644
index 0000000..6204ff1
Binary files /dev/null and b/.test_mask.c.swp differ
diff --git a/test_mask.c b/test_mask.c
index 879a4af..c8d0d42 100644
--- a/test_mask.c
+++ b/test_mask.c
@@ -32,7 +32,7 @@ void	compare(int initial, int compare)
 		print_bits(compare);
 		print_bits(initial & compare);
 		!(initial & compare) ? ft_putendl("&: fit") : ft_putendl("&: not fit");
-		compare <<= 1;
+		compare >>= 1;
 	}
 	print_bits(initial);
 	print_bits(compare);