diff --git a/Modules/clinic/cmathmodule.c.h b/Modules/clinic/cmathmodule.c.h
index ab556922c029fb..1f2a9a1cff5855 100644
--- a/Modules/clinic/cmathmodule.c.h
+++ b/Modules/clinic/cmathmodule.c.h
@@ -638,7 +638,7 @@ PyDoc_STRVAR(cmath_log__doc__,
 "\n"
 "log(z[, base]) -> the logarithm of z to the given base.\n"
 "\n"
-"If the base not specified, returns the natural logarithm (base e) of z.");
+"If the base is not specified, returns the natural logarithm (base e) of z.");
 
 #define CMATH_LOG_METHODDEF    \
     {"log", _PyCFunction_CAST(cmath_log), METH_FASTCALL, cmath_log__doc__},
@@ -953,4 +953,4 @@ cmath_isclose(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObjec
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=b8e445fcd2a3da65 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=c6e3f37cd562c942 input=a9049054013a1b77]*/
diff --git a/Modules/cmathmodule.c b/Modules/cmathmodule.c
index 2038ac26e65857..53e34061d53773 100644
--- a/Modules/cmathmodule.c
+++ b/Modules/cmathmodule.c
@@ -957,12 +957,12 @@ cmath.log
 
 log(z[, base]) -> the logarithm of z to the given base.
 
-If the base not specified, returns the natural logarithm (base e) of z.
+If the base is not specified, returns the natural logarithm (base e) of z.
 [clinic start generated code]*/
 
 static PyObject *
 cmath_log_impl(PyObject *module, Py_complex x, PyObject *y_obj)
-/*[clinic end generated code: output=4effdb7d258e0d94 input=230ed3a71ecd000a]*/
+/*[clinic end generated code: output=4effdb7d258e0d94 input=e1f81d4fcfd26497]*/
 {
     Py_complex y;