From 1b336971aee9305102420972e69c1fbbafc8ca41 Mon Sep 17 00:00:00 2001
From: AnHardt <github@kitelab.de>
Date: Wed, 23 Mar 2016 12:48:06 +0100
Subject: [PATCH] Fix lost undef Y_MAX_PIN in pins.h

---
 Marlin/pins.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Marlin/pins.h b/Marlin/pins.h
index f841cd712..6d97df2ac 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -219,6 +219,7 @@
 #endif
 
 #if ENABLED(DISABLE_YMAX_ENDSTOP)
+  #undef Y_MAX_PIN
   #define Y_MAX_PIN          -1
 #endif