diff --git a/gunicorn/config.py b/gunicorn/config.py
index 292f7275..726840ba 100644
--- a/gunicorn/config.py
+++ b/gunicorn/config.py
@@ -315,12 +315,14 @@ def validate_post_request(val):
     val = validate_callable(-1)(val)
 
     largs = len(inspect.getargspec(val)[0])
-    if largs == 3:
+    if largs == 4:
         return val
+    elif largs == 3:
+        return lambda worker, req, env, _r: val(worker, req, env)
     elif largs == 2:
-        return lambda worker, req, _: val(worker, req)
+        return lambda worker, req, _e, _r: val(worker, req)
     else:
-        raise TypeError("Value must have an arity of: 3")
+        raise TypeError("Value must have an arity of: 4")
 
 
 
@@ -1022,7 +1024,7 @@ class PostRequest(Setting):
     section = "Server Hooks"
     validator = validate_post_request
     type = "callable"
-    def post_request(worker, req, environ):
+    def post_request(worker, req, environ, resp):
         pass
     default = staticmethod(post_request)
     desc = """\
diff --git a/gunicorn/workers/async.py b/gunicorn/workers/async.py
index 85ac7854..59bffaca 100644
--- a/gunicorn/workers/async.py
+++ b/gunicorn/workers/async.py
@@ -74,6 +74,8 @@ class AsyncWorker(base.Worker):
 
     def handle_request(self, listener, req, sock, addr):
         request_start = datetime.now()
+        environ = {}
+        resp = None
         try:
             self.cfg.pre_request(self, req)
             resp, environ = wsgi.create(req, sock, addr,
@@ -103,7 +105,7 @@ class AsyncWorker(base.Worker):
                 raise StopIteration()
         finally:
             try:
-                self.cfg.post_request(self, req, environ)
-            except:
-                pass
+                self.cfg.post_request(self, req, environ, resp)
+            except Exception:
+                self.log.exception("Exception in post_request hook")
         return True
diff --git a/gunicorn/workers/sync.py b/gunicorn/workers/sync.py
index 61291d96..a72997c2 100644
--- a/gunicorn/workers/sync.py
+++ b/gunicorn/workers/sync.py
@@ -107,6 +107,7 @@ class SyncWorker(base.Worker):
 
     def handle_request(self, listener, req, client, addr):
         environ = {}
+        resp = None
         try:
             self.cfg.pre_request(self, req)
             request_start = datetime.now()
@@ -141,6 +142,6 @@ class SyncWorker(base.Worker):
             return
         finally:
             try:
-                self.cfg.post_request(self, req, environ)
-            except:
-                pass
+                self.cfg.post_request(self, req, environ, resp)
+            except Exception:
+                self.log.exception("Exception in post_request hook")
diff --git a/tests/test_003-config.py b/tests/test_003-config.py
index 50933e8e..b2431a12 100644
--- a/tests/test_003-config.py
+++ b/tests/test_003-config.py
@@ -192,3 +192,25 @@ def test_cli_overrides_config():
         app = NoConfigApp()
         t.eq(app.cfg.bind, ["blarney"])
         t.eq(app.cfg.proc_name, "fooey")
+
+
+def test_post_request():
+    c = config.Config()
+
+    def post_request_4(worker, req, environ, resp):
+        return 4
+
+    def post_request_3(worker, req, environ):
+        return 3
+
+    def post_request_2(worker, req):
+        return 2
+
+    c.set("post_request", post_request_4)
+    t.eq(4, c.post_request(1, 2, 3, 4))
+
+    c.set("post_request", post_request_3)
+    t.eq(3, c.post_request(1, 2, 3, 4))
+
+    c.set("post_request", post_request_2)
+    t.eq(2, c.post_request(1, 2, 3, 4))