diff --git a/keyboard/infinity/Makefile.led b/keyboard/infinity/Makefile.led
new file mode 100644
index 0000000..12571b8
--- /dev/null
+++ b/keyboard/infinity/Makefile.led
@@ -0,0 +1,2 @@
+OPT_DEFS += -DINFINITY_LED
+include Makefile
diff --git a/keyboard/infinity/Makefile.prototype b/keyboard/infinity/Makefile.prototype
new file mode 100644
index 0000000..9985324
--- /dev/null
+++ b/keyboard/infinity/Makefile.prototype
@@ -0,0 +1,2 @@
+OPT_DEFS += -DINFINITY_PROTOTYPE
+include Makefile
diff --git a/keyboard/infinity/matrix.c b/keyboard/infinity/matrix.c
index 36c9581..60cadc4 100644
--- a/keyboard/infinity/matrix.c
+++ b/keyboard/infinity/matrix.c
@@ -39,7 +39,7 @@ void matrix_init(void)
     gpio_init_in_ex(&col[5], PTD6, PullDown);
     gpio_init_in_ex(&col[6], PTD7, PullDown);
 
-#ifdef INFINITY_LED
+#ifndef INFINITY_LED
     /* Row(strobe) */
     gpio_init_out_ex(&row[0], PTB0, 0);
     gpio_init_out_ex(&row[1], PTB1, 0);