diff --git a/web/api/v1/api_test.go b/web/api/v1/api_test.go
index 2d7455bf20..dcd9d9a06c 100644
--- a/web/api/v1/api_test.go
+++ b/web/api/v1/api_test.go
@@ -3293,6 +3293,7 @@ func BenchmarkRespond(b *testing.B) {
 	}
 	b.ResetTimer()
 	api := API{}
+	api.InstallCodec(JSONCodec{})
 	for n := 0; n < b.N; n++ {
 		api.respond(&testResponseWriter, request, response, nil)
 	}