From eada17ed69ede29d83f7c3897d64e2872faaae18 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date: Sun, 10 Apr 2022 01:49:59 -0500
Subject: [PATCH] =?UTF-8?q?=F0=9F=A9=B9=20Apply=20100%=20leveling=20correc?=
 =?UTF-8?q?tion=20below=20the=20bed?=
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See #24002
---
 Marlin/src/module/planner.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/module/planner.h b/Marlin/src/module/planner.h
index 5b79e406f5..3f96863cbd 100644
--- a/Marlin/src/module/planner.h
+++ b/Marlin/src/module/planner.h
@@ -591,7 +591,7 @@ class Planner {
        */
       static float fade_scaling_factor_for_z(const_float_t rz) {
         static float z_fade_factor = 1;
-        if (!z_fade_height) return 1;
+        if (!z_fade_height || rz <= 0) return 1;
         if (rz >= z_fade_height) return 0;
         if (last_fade_z != rz) {
           last_fade_z = rz;