diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index 3630990368c..4a54139c5d4 100644
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -1233,7 +1233,7 @@ and :c:type:`PyType_Type` effectively act as defaults.)
       .. note::
 
          :const:`Py_TPFLAGS_MAPPING` and :const:`Py_TPFLAGS_SEQUENCE` are
-         mutually exclusive; it is an error enable both flags simultaneously.
+         mutually exclusive; it is an error to enable both flags simultaneously.
 
       **Inheritance:**
 
@@ -1255,7 +1255,7 @@ and :c:type:`PyType_Type` effectively act as defaults.)
       .. note::
 
          :const:`Py_TPFLAGS_MAPPING` and :const:`Py_TPFLAGS_SEQUENCE` are
-         mutually exclusive; it is an error enable both flags simultaneously.
+         mutually exclusive; it is an error to enable both flags simultaneously.
 
       **Inheritance:**