diff --git a/testcases/config.h.Profiling b/testcases/config.h.Profiling
index dea3740..61f67db 100644
--- a/testcases/config.h.Profiling
+++ b/testcases/config.h.Profiling
@@ -268,6 +268,17 @@
 */
 //#define USE_INTERNAL_PULLUPS
 
+/** \def Z_AUTODISABLE
+  Automatically disable Z axis when not in use. This is useful for printers
+  with a self-locking Z axis, e.g. the various Mendel derivates.
+
+  Other printers have a heavy Z axis or a not self-locking spindle. In that
+  case you should not activate this.
+
+  This option has no effect on controllers with a common stepper enable pin.
+*/
+#define Z_AUTODISABLE
+
 /*
 	user defined pins
 	adjust to suit your electronics,