diff --git a/Doc/c-api/apiabiversion.rst b/Doc/c-api/apiabiversion.rst
index f6d52df9ef1..890a0383931 100644
--- a/Doc/c-api/apiabiversion.rst
+++ b/Doc/c-api/apiabiversion.rst
@@ -28,7 +28,7 @@ the following manner:
    |       |                         |  ``0xB`` for beta, ``0xC`` for release         |
    |       |                         |  candidate and ``0xF`` for final), in this     |
    |       |                         |  case it is alpha.                             |
-   |       +-------------------------+------------------------------------------------+
+   +-------+-------------------------+------------------------------------------------+
    |       |       ``29-32``         |  ``PY_RELEASE_SERIAL`` (the ``2`` in           |
    |       |                         |  ``3.4.1a2``, zero for final releases)         |
    +-------+-------------------------+------------------------------------------------+