diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 55384d6ff..4207a48af 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -792,7 +792,7 @@ class Auth(object):
         if self.hs.config.hs_disabled:
             raise ResourceLimitError(
                 403, self.hs.config.hs_disabled_message,
-                errcode=Codes.RESOURCE_LIMIT_EXCEED,
+                errcode=Codes.RESOURCE_LIMIT_EXCEEDED,
                 admin_uri=self.hs.config.admin_uri,
                 limit_type=self.hs.config.hs_disabled_limit_type
             )
@@ -809,6 +809,6 @@ class Auth(object):
                     403, "Monthly Active User Limit Exceeded",
 
                     admin_uri=self.hs.config.admin_uri,
-                    errcode=Codes.RESOURCE_LIMIT_EXCEED,
+                    errcode=Codes.RESOURCE_LIMIT_EXCEEDED,
                     limit_type="monthly_active_user"
                 )
diff --git a/synapse/api/errors.py b/synapse/api/errors.py
index e26001ab1..c4ddba988 100644
--- a/synapse/api/errors.py
+++ b/synapse/api/errors.py
@@ -56,7 +56,7 @@ class Codes(object):
     SERVER_NOT_TRUSTED = "M_SERVER_NOT_TRUSTED"
     CONSENT_NOT_GIVEN = "M_CONSENT_NOT_GIVEN"
     CANNOT_LEAVE_SERVER_NOTICE_ROOM = "M_CANNOT_LEAVE_SERVER_NOTICE_ROOM"
-    RESOURCE_LIMIT_EXCEED = "M_RESOURCE_LIMIT_EXCEED"
+    RESOURCE_LIMIT_EXCEEDED = "M_RESOURCE_LIMIT_EXCEEDED"
     UNSUPPORTED_ROOM_VERSION = "M_UNSUPPORTED_ROOM_VERSION"
     INCOMPATIBLE_ROOM_VERSION = "M_INCOMPATIBLE_ROOM_VERSION"
 
@@ -238,7 +238,7 @@ class ResourceLimitError(SynapseError):
     """
     def __init__(
         self, code, msg,
-        errcode=Codes.RESOURCE_LIMIT_EXCEED,
+        errcode=Codes.RESOURCE_LIMIT_EXCEEDED,
         admin_uri=None,
         limit_type=None,
     ):
diff --git a/tests/api/test_auth.py b/tests/api/test_auth.py
index c4cbff4e8..ed960090c 100644
--- a/tests/api/test_auth.py
+++ b/tests/api/test_auth.py
@@ -458,7 +458,7 @@ class AuthTestCase(unittest.TestCase):
         with self.assertRaises(ResourceLimitError) as e:
             yield self.auth.check_auth_blocking()
         self.assertEquals(e.exception.admin_uri, self.hs.config.admin_uri)
-        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEED)
+        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
         self.assertEquals(e.exception.code, 403)
 
         # Ensure does not throw an error
@@ -474,7 +474,7 @@ class AuthTestCase(unittest.TestCase):
         with self.assertRaises(ResourceLimitError) as e:
             yield self.auth.check_auth_blocking()
         self.assertEquals(e.exception.admin_uri, self.hs.config.admin_uri)
-        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEED)
+        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
         self.assertEquals(e.exception.code, 403)
 
     @defer.inlineCallbacks
diff --git a/tests/handlers/test_sync.py b/tests/handlers/test_sync.py
index a01ab471f..31f54bbd7 100644
--- a/tests/handlers/test_sync.py
+++ b/tests/handlers/test_sync.py
@@ -51,7 +51,7 @@ class SyncTestCase(tests.unittest.TestCase):
         self.hs.config.hs_disabled = True
         with self.assertRaises(ResourceLimitError) as e:
             yield self.sync_handler.wait_for_sync_for_user(sync_config)
-        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEED)
+        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
 
         self.hs.config.hs_disabled = False
 
@@ -59,7 +59,7 @@ class SyncTestCase(tests.unittest.TestCase):
 
         with self.assertRaises(ResourceLimitError) as e:
             yield self.sync_handler.wait_for_sync_for_user(sync_config)
-        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEED)
+        self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
 
     def _generate_sync_config(self, user_id):
         return SyncConfig(