diff --git a/daphne/tests/test_utils.py b/daphne/tests/test_utils.py
index c0f4b6d..e12322e 100644
--- a/daphne/tests/test_utils.py
+++ b/daphne/tests/test_utils.py
@@ -31,13 +31,13 @@ class TestXForwardedForHttpParsing(TestCase):
             ['10.1.2.3', 0]
         )
 
-    def test_port_in_address(self):
+    def test_v6_address(self):
         headers = Headers({
-            b'X-Forwarded-For': [b'10.1.2.3:5123'],
+            b'X-Forwarded-For': [b'1043::a321:0001, 10.0.5.6'],
         })
         self.assertEqual(
             parse_x_forwarded_for(headers),
-            ['10.1.2.3', 5123]
+            ['1043::a321:0001', 0]
         )
 
     def test_multiple_proxys(self):
@@ -85,13 +85,13 @@ class TestXForwardedForWsParsing(TestCase):
             ['10.1.2.3', 0]
         )
 
-    def test_port_in_address(self):
+    def test_v6_address(self):
         headers = {
-            b'X-Forwarded-For': b'10.1.2.3:5123',
+            b'X-Forwarded-For': [b'1043::a321:0001, 10.0.5.6'],
         }
         self.assertEqual(
             parse_x_forwarded_for(headers),
-            ['10.1.2.3', 5123]
+            ['1043::a321:0001', 0]
         )
 
     def test_multiple_proxys(self):
diff --git a/daphne/utils.py b/daphne/utils.py
index 2f375ba..cb8043c 100644
--- a/daphne/utils.py
+++ b/daphne/utils.py
@@ -39,15 +39,7 @@ def parse_x_forwarded_for(headers,
         if ',' in address_value:
             address_value = address_value.split(",")[0].strip()
 
-        if ':' in address_value:
-            address_host, address_port = address_value.split(':')
-            result = [address_host, 0]
-            try:
-                result[1] = int(address_port)
-            except ValueError:
-                pass
-        else:
-            result = [address_value, 0]
+        result = [address_value, 0]
 
         if port_header_name:
             # We only want to parse the X-Forwarded-Port header if we also parsed the X-Forwarded-For