#11997: merge with 3.1.
diff --git a/Doc/c-api/init.rst b/Doc/c-api/init.rst
index e50c417..1806867 100644
--- a/Doc/c-api/init.rst
+++ b/Doc/c-api/init.rst
@@ -883,7 +883,7 @@
modules.
Also note that combining this functionality with :c:func:`PyGILState_\*` APIs
-is delicate, become these APIs assume a bijection between Python thread states
+is delicate, because these APIs assume a bijection between Python thread states
and OS-level threads, an assumption broken by the presence of sub-interpreters.
It is highly recommended that you don't switch sub-interpreters between a pair
of matching :c:func:`PyGILState_Ensure` and :c:func:`PyGILState_Release` calls.