diff --git a/Marlin/pins.h b/Marlin/pins.h
index 6db56e9f4..0d6329886 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -187,7 +187,7 @@
   #define Z_MIN_PIN          -1
 #endif
 
-#ifdef DISABLE_Z_PROBE_ENDSTOP
+#if defined (DISABLE_Z_PROBE_ENDSTOP) || ! defined (Z_PROBE_ENDSTOP) // Allow code to compile regardless of Z_PROBE_ENDSTOP setting.
   #define Z_PROBE_PIN        -1
 #endif