diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 66b836eaf0008a..cbe2f518e5f86f 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -3376,7 +3376,7 @@ left undefined.
             object.__itruediv__(self, other)
             object.__ifloordiv__(self, other)
             object.__imod__(self, other)
-            object.__ipow__(self, other[, modulo])
+            object.__ipow__(self, other)
             object.__ilshift__(self, other)
             object.__irshift__(self, other)
             object.__iand__(self, other)