diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 8b92c87..9616394 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -691,7 +691,7 @@
 	PyObject *d;
 
 	d = PyEval_GetGlobals();
-	Py_INCREF(d);
+	Py_XINCREF(d);
 	return d;
 }
 
@@ -1084,7 +1084,7 @@
 	PyObject *d;
 
 	d = PyEval_GetLocals();
-	Py_INCREF(d);
+	Py_XINCREF(d);
 	return d;
 }