From e70440b7cbbabc0bf44db45273ec1a4baaf7d5cf Mon Sep 17 00:00:00 2001
From: Julius Mumme <jufimu12@gmail.com>
Date: Sun, 16 Aug 2020 05:50:28 +0200
Subject: [PATCH] Fix IS_PROBE_PIN macro (#19024)

---
 Marlin/src/inc/Conditionals_post.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/inc/Conditionals_post.h b/Marlin/src/inc/Conditionals_post.h
index 6243d82aa8c..29ab2cfc294 100644
--- a/Marlin/src/inc/Conditionals_post.h
+++ b/Marlin/src/inc/Conditionals_post.h
@@ -1622,7 +1622,7 @@
 //
 
 // Is an endstop plug used for extra Z endstops or the probe?
-#define IS_PROBE_PIN(A,M) (HAS_CUSTOM_PROBE_PIN && Z_MIN_PROBE_PIN == P)
+#define IS_PROBE_PIN(A,M) (HAS_CUSTOM_PROBE_PIN && Z_MIN_PROBE_PIN == A##_##M##_PIN)
 #define IS_X2_ENDSTOP(A,M) (ENABLED(X_DUAL_ENDSTOPS) && X2_USE_ENDSTOP == _##A##M##_)
 #define IS_Y2_ENDSTOP(A,M) (ENABLED(Y_DUAL_ENDSTOPS) && Y2_USE_ENDSTOP == _##A##M##_)
 #define IS_Z2_ENDSTOP(A,M) (ENABLED(Z_MULTI_ENDSTOPS) && Z2_USE_ENDSTOP == _##A##M##_)