1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py
index b9d3f89324..ae62c69fc3 100644
--- a/synapse/federation/transaction_queue.py
+++ b/synapse/federation/transaction_queue.py
@@ -71,11 +71,11 @@ class TransactionQueue(object):
 
         metrics.register_callback("pending_pdus",
             lambda: {(dest,): len(pdus[dest]) for dest in pdus.keys()},
-            keys=["dest"],
+            labels=["dest"],
         )
         metrics.register_callback("pending_edus",
             lambda: {(dest,): len(edus[dest]) for dest in edus.keys()},
-            keys=["dest"],
+            labels=["dest"],
         )
 
     def can_send_to(self, destination):