diff --git a/changelog.d/15070.misc b/changelog.d/15070.misc
new file mode 100644
index 000000000000..0f3244de9fa3
--- /dev/null
+++ b/changelog.d/15070.misc
@@ -0,0 +1 @@
+Fix clashing database transaction name.
diff --git a/synapse/storage/databases/main/end_to_end_keys.py b/synapse/storage/databases/main/end_to_end_keys.py
index c4ac6c33ba54..2523ec8fa7a5 100644
--- a/synapse/storage/databases/main/end_to_end_keys.py
+++ b/synapse/storage/databases/main/end_to_end_keys.py
@@ -260,7 +260,7 @@ async def get_e2e_device_keys_and_signatures(
 
         for batch in batch_iter(signature_query, 50):
             cross_sigs_result = await self.db_pool.runInteraction(
-                "get_e2e_cross_signing_signatures",
+                "get_e2e_cross_signing_signatures_for_devices",
                 self._get_e2e_cross_signing_signatures_for_devices_txn,
                 batch,
             )