diff --git a/tests/qtest/test-hmp.c b/tests/qtest/test-hmp.c
index c0d2d70689..fc9125f8bb 100644
--- a/tests/qtest/test-hmp.c
+++ b/tests/qtest/test-hmp.c
@@ -45,7 +45,7 @@ static const char *hmp_cmds[] = {
     "log all",
     "log none",
     "memsave 0 4096 \"/dev/null\"",
-    "migrate_set_parameter xbzrle-cache-size 1",
+    "migrate_set_parameter xbzrle-cache-size 64k",
     "migrate_set_parameter downtime-limit 1",
     "migrate_set_parameter max-bandwidth 1",
     "netdev_add user,id=net1",