diff -r 50a94e1cabe0 Python/ceval.c
--- a/Python/ceval.c	Mon May 09 00:14:22 2016 +0300
+++ b/Python/ceval.c	Tue May 10 19:01:12 2016 +0800
@@ -3291,6 +3291,7 @@
                 PyObject *anns = PyDict_New();
                 if (anns == NULL) {
                     Py_DECREF(func);
+                    Py_DECREF(names);
                     goto error;
                 }
                 name_ix = PyTuple_Size(names);
@@ -3306,9 +3307,11 @@
                     if (err != 0) {
                         Py_DECREF(anns);
                         Py_DECREF(func);
+                        Py_DECREF(names);
                         goto error;
                     }
                 }
+                Py_DECREF(names);
 
                 if (PyFunction_SetAnnotations(func, anns) != 0) {
                     /* Can't happen unless
@@ -3318,7 +3321,6 @@
                     goto error;
                 }
                 Py_DECREF(anns);
-                Py_DECREF(names);
             }
 
             /* XXX Maybe this should be a separate opcode? */