diff --git a/peps/pep-0788.rst b/peps/pep-0788.rst
index bdfcaee1ca5..7f3c6105c73 100644
--- a/peps/pep-0788.rst
+++ b/peps/pep-0788.rst
@@ -205,7 +205,7 @@ Interpreter guards
     The caller does not need to hold an attached thread state.
 
 
-.. c:function:: void PyInterpreterGuard_Close(PyInterpreterGuard guard)
+.. c:function:: void PyInterpreterGuard_Close(PyInterpreterGuard *guard)
 
     Close an interpreter guard, allowing the interpreter to enter
     finalization if no other guards remain. If an interpreter guard
@@ -377,7 +377,7 @@ replace :c:func:`PyGILState_Ensure` and :c:func:`PyGILState_Release`.
 
           PyThreadState *tstate = PyThreadState_Ensure(guard);
           if (tstate == NULL) {
-              PyInterpreterGuard_Close(tstate);
+              PyInterpreterGuard_Close(guard);
               return NULL;
           }
           close_guard_upon_tstate_release(tstate, guard);
@@ -595,7 +595,6 @@ With this PEP, you would implement it like this:
         assert(view != NULL);
         PyThreadState *tstate = PyThreadState_EnsureFromView(view);
         if (tstate == NULL) {
-            PyInterpreterGuard_Close(guard);
             fputs("Cannot call Python.\n", stderr);
             return -1;
         }