diff --git a/Doc/library/re.rst b/Doc/library/re.rst
index 7f79e58ccec..d8ead6822d2 100644
--- a/Doc/library/re.rst
+++ b/Doc/library/re.rst
@@ -1075,13 +1075,13 @@ expressions.
 +--------------------------------+---------------------------------------------+
 | ``%i``                         | ``[-+]?(0[xX][\dA-Fa-f]+|0[0-7]*|\d+)``     |
 +--------------------------------+---------------------------------------------+
-| ``%o``                         | ``0[0-7]*``                                 |
+| ``%o``                         | ``[-+]?[0-7]+``                             |
 +--------------------------------+---------------------------------------------+
 | ``%s``                         | ``\S+``                                     |
 +--------------------------------+---------------------------------------------+
 | ``%u``                         | ``\d+``                                     |
 +--------------------------------+---------------------------------------------+
-| ``%x``, ``%X``                 | ``0[xX][\dA-Fa-f]+``                        |
+| ``%x``, ``%X``                 | ``[-+]?(0[xX])?[\dA-Fa-f]+``                |
 +--------------------------------+---------------------------------------------+
 
 To extract the filename and numbers from a string like ::