diff --git a/swift/common/middleware/proxy_logging.py b/swift/common/middleware/proxy_logging.py
index 97950a7c94..273c31064d 100644
--- a/swift/common/middleware/proxy_logging.py
+++ b/swift/common/middleware/proxy_logging.py
@@ -66,6 +66,8 @@ from swift.common.utils import (get_logger, get_remote_client,
                                 get_valid_utf8_str, config_true_value,
                                 InputProxy)
 
+QUOTE_SAFE = '/:'
+
 
 class ProxyLoggingMiddleware(object):
     """
@@ -122,7 +124,7 @@ class ProxyLoggingMiddleware(object):
         if self.req_already_logged(req):
             return
         req_path = get_valid_utf8_str(req.path)
-        the_request = quote(unquote(req_path))
+        the_request = quote(unquote(req_path), QUOTE_SAFE)
         if req.query_string:
             the_request = the_request + '?' + req.query_string
         logged_headers = None
@@ -131,7 +133,7 @@ class ProxyLoggingMiddleware(object):
                                        for k, v in req.headers.items())
         method = self.method_from_req(req)
         self.access_logger.info(' '.join(
-            quote(str(x) if x else '-')
+            quote(str(x) if x else '-', QUOTE_SAFE)
             for x in (
                 get_remote_client(req),
                 req.remote_addr,
diff --git a/test/unit/common/middleware/test_proxy_logging.py b/test/unit/common/middleware/test_proxy_logging.py
index 7c66ea2669..04b574e43b 100644
--- a/test/unit/common/middleware/test_proxy_logging.py
+++ b/test/unit/common/middleware/test_proxy_logging.py
@@ -519,6 +519,24 @@ class TestProxyLogging(unittest.TestCase):
         self.assertEquals(resp_body, 'FAKE APP')
         self.assertEquals(log_parts[11], str(len(resp_body)))
 
+    def test_ipv6(self):
+        ipv6addr = '2001:db8:85a3:8d3:1319:8a2e:370:7348'
+        app = proxy_logging.ProxyLoggingMiddleware(FakeApp(), {})
+        app.access_logger = FakeLogger()
+        req = Request.blank('/', environ={'REQUEST_METHOD': 'GET'})
+        req.remote_addr = ipv6addr
+        resp = app(req.environ, start_response)
+        resp_body = ''.join(resp)
+        log_parts = self._log_parts(app)
+        self.assertEquals(log_parts[0], ipv6addr)
+        self.assertEquals(log_parts[1], ipv6addr)
+        self.assertEquals(log_parts[3], 'GET')
+        self.assertEquals(log_parts[4], '/')
+        self.assertEquals(log_parts[5], 'HTTP/1.0')
+        self.assertEquals(log_parts[6], '200')
+        self.assertEquals(resp_body, 'FAKE APP')
+        self.assertEquals(log_parts[11], str(len(resp_body)))
+
 
 if __name__ == '__main__':
     unittest.main()