diff -r c568b6ac5e89 Objects/unicodeobject.c
--- a/Objects/unicodeobject.c	Wed Dec 21 17:30:50 2016 +0100
+++ b/Objects/unicodeobject.c	Thu Dec 22 12:57:26 2016 +0800
@@ -14286,11 +14286,13 @@
             if (iobj == NULL) {
                 goto onError;
             }
-            v = iobj;
+            /* Integer input truncated to a character */
+            x = PyLong_AsLong(iobj);
             Py_DECREF(iobj);
-        }
-        /* Integer input truncated to a character */
-        x = PyLong_AsLong(v);
+        } else {
+            /* Integer input truncated to a character */
+            x = PyLong_AsLong(v);
+        }
         if (x == -1 && PyErr_Occurred())
             goto onError;