diff --git a/_pytest/fixtures.py b/_pytest/fixtures.py
index 926396407..8858a40e9 100644
--- a/_pytest/fixtures.py
+++ b/_pytest/fixtures.py
@@ -575,7 +575,6 @@ class SubRequest(FixtureRequest):
         self.param_index = param_index
         self.scope = scope
         self._fixturedef = fixturedef
-        self.addfinalizer = fixturedef.addfinalizer
         self._pyfuncitem = request._pyfuncitem
         self._fixture_values = request._fixture_values
         self._fixture_defs = request._fixture_defs
@@ -586,6 +585,9 @@ class SubRequest(FixtureRequest):
     def __repr__(self):
         return "<SubRequest %r for %r>" % (self.fixturename, self._pyfuncitem)
 
+    def addfinalizer(self, finalizer):
+        self._fixturedef.addfinalizer(finalizer)
+
 
 class ScopeMismatchError(Exception):
     """ A fixture function tries to use a different fixture function which