diff --git a/pages/Configuring/Master-Layout.md b/pages/Configuring/Master-Layout.md
index 8d09578..e665cbb 100644
--- a/pages/Configuring/Master-Layout.md
+++ b/pages/Configuring/Master-Layout.md
@@ -10,6 +10,7 @@ _category name `master`_
 
 | name | description | type | default |
 |---|---|---|---|
+| allow_small_split | enable adding additional master windows in a horizontal split style | bool | false |
 | special_scale_factor | (0.0 - 1.0) the scale of the special workspace windows | float | 0.8 |
 | mfact | (0.0 - 1.0) master split factor, the ratio of master split| float | 0.55 |
 | new_is_master | whether a newly open window should replace the master or join the slaves. | bool | true |