diff --git a/cloud/test/resource_test.cpp b/cloud/test/resource_test.cpp
index 0d8a2cf89e220f..e2aa09514360e1 100644
--- a/cloud/test/resource_test.cpp
+++ b/cloud/test/resource_test.cpp
@@ -394,6 +394,8 @@ TEST(ResourceTest, AddDropCluster) {
         auto* key_id = try_any_cast<int64_t*>(args[2]);
         *key_id = 1;
     });
+    sp->set_call_back("resource_manager::set_safe_drop_time",
+                      [](auto&& args) { *try_any_cast<int64_t*>(args[0]) = -1; });
     sp->set_call_back("decrypt_ak_sk:get_encryption_key", [](auto&& args) {
         auto* key = try_any_cast<std::string*>(args[0]);
         *key = "test";