diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst
index 5a10f82191c..9b6b86e75b7 100644
--- a/Doc/library/ctypes.rst
+++ b/Doc/library/ctypes.rst
@@ -1791,8 +1791,8 @@ Utility functions
 .. function:: byref(obj[, offset])
 
    Returns a light-weight pointer to ``obj``, which must be an
-   instance of a ctypes type.  ``offset`` defaults to zero, it must be
-   an integer which is added to the internal pointer value.
+   instance of a ctypes type.  ``offset`` defaults to zero, and must be
+   an integer that will be added to the internal pointer value.
 
    ``byref(obj, offset)`` corresponds to this C code::