diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index c242041c73d..1442fbeb33d 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -2331,7 +2331,7 @@ left undefined.
             object.__rfloordiv__(self, other)
             object.__rmod__(self, other)
             object.__rdivmod__(self, other)
-            object.__rpow__(self, other)
+            object.__rpow__(self, other[, modulo])
             object.__rlshift__(self, other)
             object.__rrshift__(self, other)
             object.__rand__(self, other)