diff --git a/docs/library/machine.WDT.rst b/docs/library/machine.WDT.rst
index ff534fd9b4..1d79b4c4ed 100644
--- a/docs/library/machine.WDT.rst
+++ b/docs/library/machine.WDT.rst
@@ -14,7 +14,7 @@ Example usage::
     wdt = WDT(timeout=2000)  # enable it with a timeout of 2s
     wdt.feed()
 
-Availability of this class: WiPy.
+Availability of this class: pyboard, WiPy.
 
 Constructors
 ------------