diff --git a/Modules/clinic/itertoolsmodule.c.h b/Modules/clinic/itertoolsmodule.c.h
index 49816bfcb42fec..98cce3bbc968d9 100644
--- a/Modules/clinic/itertoolsmodule.c.h
+++ b/Modules/clinic/itertoolsmodule.c.h
@@ -871,12 +871,12 @@ itertools_compress(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 }
 
 PyDoc_STRVAR(itertools_filterfalse__doc__,
-"filterfalse(function, iterable, /)\n"
+"filterfalse(predicate, iterable, /)\n"
 "--\n"
 "\n"
-"Return those items of iterable for which function(item) is false.\n"
+"Return those items of iterable for which predicate(item) is false.\n"
 "\n"
-"If function is None, return the items that are false.");
+"If predicate is None, return the items that are false.");
 
 static PyObject *
 itertools_filterfalse_impl(PyTypeObject *type, PyObject *func, PyObject *seq);
@@ -980,4 +980,4 @@ itertools_count(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=7f385837b13edbeb input=a9049054013a1b77]*/
+/*[clinic end generated code: output=a44797ba1e4a8cce input=a9049054013a1b77]*/
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 8685eff8be65c3..6e57b54a4be1f2 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -3245,17 +3245,17 @@ typedef struct {
 /*[clinic input]
 @classmethod
 itertools.filterfalse.__new__
-    function as func: object
+    predicate as func: object
     iterable as seq: object
     /
-Return those items of iterable for which function(item) is false.
+Return those items of iterable for which predicate(item) is false.
 
-If function is None, return the items that are false.
+If predicate is None, return the items that are false.
 [clinic start generated code]*/
 
 static PyObject *
 itertools_filterfalse_impl(PyTypeObject *type, PyObject *func, PyObject *seq)
-/*[clinic end generated code: output=55f87eab9fc0484e input=2d684a2c66f99cde]*/
+/*[clinic end generated code: output=55f87eab9fc0484e input=a7df36679f5f66d6]*/
 {
     PyObject *it;
     filterfalseobject *lz;