diff --git a/Include/internal/pycore_asdl.h b/Include/internal/pycore_asdl.h
index afeada88d13e24..4c7d7e5d13058a 100644
--- a/Include/internal/pycore_asdl.h
+++ b/Include/internal/pycore_asdl.h
@@ -16,7 +16,7 @@ typedef PyObject * object;
 typedef PyObject * constant;
 
 /* It would be nice if the code generated by asdl_c.py was completely
-   independent of Python, but it is a goal the requires too much work
+   independent of Python, but it is a goal that requires too much work
    at this stage.  So, for example, I'll represent identifiers as
    interned Python strings.
 */