diff --git a/src/leo_s3_auth.erl b/src/leo_s3_auth.erl
index 170928d..c014a03 100644
--- a/src/leo_s3_auth.erl
+++ b/src/leo_s3_auth.erl
@@ -860,7 +860,8 @@ auth_sub_resources(QueryStr) ->
 -ifdef(TEST).
 auth_uri_test() ->
     Bucket = <<"photo">>,
-    <<"">> = auth_uri(Bucket, <<"/photo">>, <<"/photo">>),
+    %% For bucket operations, AWS S3 canonical resource ends with "/" (e.g., /bucket/)
+    <<"/">> = auth_uri(Bucket, <<"/photo">>, <<"/photo">>),
     <<"/photo">> = auth_uri(Bucket, <<"/photo">>, <<"/photo/photo">>),
 
     <<"/">> = auth_uri(Bucket, <<"/photo/">>, <<"/photo/">>),
diff --git a/src/leo_s3_bucket.erl b/src/leo_s3_bucket.erl
index 6e8f7c9..fba2e21 100644
--- a/src/leo_s3_bucket.erl
+++ b/src/leo_s3_bucket.erl
@@ -65,13 +65,7 @@
 start(slave = Type, Provider, SyncInterval) ->
     catch ets:new(?BUCKET_TABLE, [named_table, ordered_set, public, {read_concurrency, true}]),
     catch ets:new(?BUCKET_INFO,  [named_table, set,         public, {read_concurrency, true}]),
-
-    case Provider of
-        [] ->
-            void;
-        _ ->
-            ok = setup(Type, ets, Provider, SyncInterval)
-    end,
+    ok = setup(Type, ets, Provider, SyncInterval),
     ok;
 
 start(master = Type, _Provider, SyncInterval) ->