diff --git a/src/_zkapauthorizer/_storage_client.py b/src/_zkapauthorizer/_storage_client.py
index d62370ab4677b705dd55162feb88aac328063c93..792bb47197a968f1dd65019b5aa70c4e155133d3 100644
--- a/src/_zkapauthorizer/_storage_client.py
+++ b/src/_zkapauthorizer/_storage_client.py
@@ -195,7 +195,7 @@ def with_rref(f):
     return g
 
 
-def _get_encoded_passes(group):
+def _encode_passes(group):
     """
     :param IPassGroup group: A group of passes to encode.
 
@@ -281,7 +281,7 @@ class ZKAPAuthorizerStorageClient(object):
         return call_with_passes(
             lambda passes: rref.callRemote(
                 "allocate_buckets",
-                _get_encoded_passes(passes),
+                _encode_passes(passes),
                 storage_index,
                 renew_secret,
                 cancel_secret,
@@ -323,7 +323,7 @@ class ZKAPAuthorizerStorageClient(object):
         result = yield call_with_passes(
             lambda passes: rref.callRemote(
                 "add_lease",
-                _get_encoded_passes(passes),
+                _encode_passes(passes),
                 storage_index,
                 renew_secret,
                 cancel_secret,
@@ -351,7 +351,7 @@ class ZKAPAuthorizerStorageClient(object):
         result = yield call_with_passes(
             lambda passes: rref.callRemote(
                 "renew_lease",
-                _get_encoded_passes(passes),
+                _encode_passes(passes),
                 storage_index,
                 renew_secret,
             ),
@@ -422,7 +422,7 @@ class ZKAPAuthorizerStorageClient(object):
         result = yield call_with_passes(
             lambda passes: rref.callRemote(
                 "slot_testv_and_readv_and_writev",
-                _get_encoded_passes(passes),
+                _encode_passes(passes),
                 storage_index,
                 secrets,
                 tw_vectors,
diff --git a/src/_zkapauthorizer/tests/test_storage_protocol.py b/src/_zkapauthorizer/tests/test_storage_protocol.py
index 1c84915add4de1d37ba4de7eab01c339352cbb3d..b649753880ae5026f1adadf0ca5e5118244df791 100644
--- a/src/_zkapauthorizer/tests/test_storage_protocol.py
+++ b/src/_zkapauthorizer/tests/test_storage_protocol.py
@@ -123,7 +123,7 @@ from ..storage_common import (
     required_passes,
 )
 from .._storage_client import (
-    _get_encoded_passes,
+    _encode_passes,
 )
 from ..foolscap import (
     ShareStat,
@@ -894,7 +894,7 @@ class ShareTests(TestCase):
         d = self.local_remote_server.callRemote(
             "slot_testv_and_readv_and_writev",
             # passes
-            _get_encoded_passes(
+            _encode_passes(
                 self.pass_factory.get(
                     slot_testv_and_readv_and_writev_message(storage_index),
                     1,