diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 8df98cf..2e29e4a 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -299,7 +299,7 @@
 .. function:: getresgid()
 
    Return a tuple (rgid, egid, sgid) denoting the current process's
-   real, effective, and saved user ids.
+   real, effective, and saved group ids.
 
    Availability: Unix.
 
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 1080c7e..dda758f 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -7600,7 +7600,7 @@
 #ifdef HAVE_GETRESGID
 PyDoc_STRVAR(posix_getresgid__doc__,
 "getresgid() -> (rgid, egid, sgid)\n\n\
-Get tuple of the current process's real, effective, and saved user ids.");
+Get tuple of the current process's real, effective, and saved group ids.");
 
 static PyObject*
 posix_getresgid (PyObject *self, PyObject *noargs)