diff --git a/docs/labwc-config.5.scd b/docs/labwc-config.5.scd
index ecfbf158..8197e16f 100644
--- a/docs/labwc-config.5.scd
+++ b/docs/labwc-config.5.scd
@@ -155,6 +155,11 @@ Configuration must be wrapped in a <labwc_config> root-node.
 	Enable or disable tap-to-click for this category. This is enabled by
 	default for all categories.
 
+*<libinput><device category=""><tapButtonMap>* [lrm|lmr]
+	Set the buttons mapped to one-, two-, and three-finger taps to the
+	left button, right button, and middle button, respectively (lrm) (the
+	default), or to left button, middle button, and right button (lmr).
+
 *<libinput><device category=""><middleEmulation>* [yes|no]
 	Enable or disable middle button emulation for this category. Middle
 	emulation processes a simultaneous left and right click as a press of
diff --git a/docs/rc.xml.all b/docs/rc.xml.all
index 1400910b..b39dc416 100644
--- a/docs/rc.xml.all
+++ b/docs/rc.xml.all
@@ -189,6 +189,7 @@
     All values are [yes|no] except for:
       - pointerSpeed [-1.0 to 1.0]
       - accelProfile [flat|adaptive]
+      - tapButtonMap [lrm|lmr]
   -->
   <libinput>
     <device category="">
@@ -197,6 +198,7 @@
       <pointerSpeed></pointerSpeed>
       <accelProfile></accelProfile>
       <tap>yes</tap>
+      <tapButtonMap></tapButtonMap>
       <middleEmulation></middleEmulation>
       <disableWhileTyping></disableWhileTyping>
     </device>