From df90eeb6b60b9ed17ce5f3a81ebb53359e56c158 Mon Sep 17 00:00:00 2001
From: kisslorand <50251547+kisslorand@users.noreply.github.com>
Date: Tue, 15 Dec 2020 05:04:45 +0200
Subject: [PATCH] Fix M1001 auto-check logic (#20456)

---
 Marlin/src/gcode/sd/M1001.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/gcode/sd/M1001.cpp b/Marlin/src/gcode/sd/M1001.cpp
index 406cd074c3c2..8e24b60493f5 100644
--- a/Marlin/src/gcode/sd/M1001.cpp
+++ b/Marlin/src/gcode/sd/M1001.cpp
@@ -65,7 +65,7 @@
  */
 void GcodeSuite::M1001() {
   // If there's another auto#.g file to run...
-  if (TERN(NO_SD_AUTOSTART, false, card.autofile_check())) return;
+  if (TERN(NO_SD_AUTOSTART, false, !card.autofile_check())) return;
 
   // Purge the recovery file...
   TERN_(POWER_LOSS_RECOVERY, recovery.purge());