1 files changed, 4 insertions, 6 deletions
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index 977dce5..9dbbd40 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -15,10 +15,10 @@
 
 
 /* Compatibility aliases */
-PyObject *PyExc_EnvironmentError = NULL;
-PyObject *PyExc_IOError = NULL;
+PyObject *PyExc_EnvironmentError = NULL;  // borrowed ref
+PyObject *PyExc_IOError = NULL;  // borrowed ref
 #ifdef MS_WINDOWS
-PyObject *PyExc_WindowsError = NULL;
+PyObject *PyExc_WindowsError = NULL;  // borrowed ref
 #endif
 
 
@@ -3647,10 +3647,8 @@ _PyBuiltins_AddExceptions(PyObject *bltinmod)
 
 #define INIT_ALIAS(NAME, TYPE) \
     do { \
-        Py_INCREF(PyExc_ ## TYPE); \
-        Py_XDECREF(PyExc_ ## NAME); \
         PyExc_ ## NAME = PyExc_ ## TYPE; \
-        if (PyDict_SetItemString(mod_dict, # NAME, PyExc_ ## NAME)) { \
+        if (PyDict_SetItemString(mod_dict, # NAME, PyExc_ ## TYPE)) { \
             return -1; \
         } \
     } while (0)