diff --git a/app/src/test/kotlin/io/flamenet/messenger/app/ASendTheRelayNeverSawIsKeptTest.kt b/app/src/test/kotlin/io/flamenet/messenger/app/ASendTheRelayNeverSawIsKeptTest.kt
index 7ebe590..51c0513 100644
--- a/app/src/test/kotlin/io/flamenet/messenger/app/ASendTheRelayNeverSawIsKeptTest.kt
+++ b/app/src/test/kotlin/io/flamenet/messenger/app/ASendTheRelayNeverSawIsKeptTest.kt
@@ -99,7 +99,12 @@ class ASendTheRelayNeverSawIsKeptTest {
     @Test
     fun `a relay that answers with a server error`() {
         val session = session()
-        repeat(4) { server.enqueue(MockResponse().setResponseCode(503)) }
+        // Every request, however many the send makes. A queue of a fixed
+        // number would block the client on the first request past its end.
+        server.dispatcher =
+            object : okhttp3.mockwebserver.Dispatcher() {
+                override fun dispatch(request: okhttp3.mockwebserver.RecordedRequest) = MockResponse().setResponseCode(503)
+            }
 
         runCatching { session.send(peer, "try again later") }