diff --git a/Doc/library/unicodedata.rst b/Doc/library/unicodedata.rst
index 3787c36d868..ad70dd9dd16 100644
--- a/Doc/library/unicodedata.rst
+++ b/Doc/library/unicodedata.rst
@@ -69,7 +69,7 @@ following functions:
 
 .. function:: bidirectional(chr)
 
-   Returns the bidirectional category assigned to the character *chr* as
+   Returns the bidirectional class assigned to the character *chr* as
    string. If no such value is defined, an empty string is returned.
 
 
diff --git a/Modules/unicodedata.c b/Modules/unicodedata.c
index d339f580805..27fadb70197 100644
--- a/Modules/unicodedata.c
+++ b/Modules/unicodedata.c
@@ -273,7 +273,7 @@ unicodedata_category(PyObject *self, PyObject *args)
 PyDoc_STRVAR(unicodedata_bidirectional__doc__,
 "bidirectional(unichr)\n\
 \n\
-Returns the bidirectional category assigned to the Unicode character\n\
+Returns the bidirectional class assigned to the Unicode character\n\
 unichr as string. If no such value is defined, an empty string is\n\
 returned.");