From 454cbcce51cd6e18d550bfd5e4799e39cbbc216c Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Tue, 25 Feb 2020 12:20:40 -0600
Subject: [PATCH] Fix the wait loop in M0 / M1

---
 Marlin/src/gcode/lcd/M0_M1.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/gcode/lcd/M0_M1.cpp b/Marlin/src/gcode/lcd/M0_M1.cpp
index bf6a3d23d5..2f110c5c55 100644
--- a/Marlin/src/gcode/lcd/M0_M1.cpp
+++ b/Marlin/src/gcode/lcd/M0_M1.cpp
@@ -102,7 +102,7 @@ void GcodeSuite::M0_M1() {
   #endif
 
   if (ms > 0) ms += millis();  // wait until this time for a click
-  while (wait_for_user || (ms > 0 && PENDING(millis(), ms))) idle();
+  while (wait_for_user && (ms == 0 || PENDING(millis(), ms))) idle();
 
   #if HAS_LEDS_OFF_FLAG
     printerEventLEDs.onResumeAfterWait();