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-rw-r--r--docs/Config_Reference.md5
1 files changed, 3 insertions, 2 deletions
diff --git a/docs/Config_Reference.md b/docs/Config_Reference.md
index 4c78b550..fd77f9e3 100644
--- a/docs/Config_Reference.md
+++ b/docs/Config_Reference.md
@@ -1835,8 +1835,9 @@ more information.
```
[extruder_stepper my_extra_stepper]
#extruder: extruder
-# The extruder this stepper is synchronized to. The default is
-# "extruder".
+# The extruder this stepper is synchronized to. If this is set to an
+# empty string then the stepper will not be synchronized to an
+# extruder. The default is "extruder".
#step_pin:
#dir_pin:
#enable_pin: