diff --git a/src/rime/config/build_info_plugin.cc b/src/rime/config/build_info_plugin.cc
index 238af9f1c..4df1e6581 100644
--- a/src/rime/config/build_info_plugin.cc
+++ b/src/rime/config/build_info_plugin.cc
@@ -22,11 +22,15 @@ bool BuildInfoPlugin::ReviewLinkOutput(
   auto timestamps = build_info["timestamps"];
   compiler->EnumerateResources([&](an<ConfigResource> resource) {
     if (!resource->loaded) {
-      LOG(WARNING) << "resource '" << resource->resource_id << "' not loaded.";
+      LOG(INFO) << "resource '" << resource->resource_id << "' not loaded.";
+      timestamps[resource->resource_id] = 0;
       return;
     }
     auto file_name = resource->data->file_name();
     if (file_name.empty()) {
+      LOG(WARNING) << "resource '" << resource->resource_id
+                   << "' is not persisted.";
+      timestamps[resource->resource_id] = 0;
       return;
     }
     // TODO: store as 64-bit number to avoid the year 2038 problem
diff --git a/src/rime/lever/deployment_tasks.cc b/src/rime/lever/deployment_tasks.cc
index d6fbda5ec..56b3a1c9f 100644
--- a/src/rime/lever/deployment_tasks.cc
+++ b/src/rime/lever/deployment_tasks.cc
@@ -385,14 +385,14 @@ static bool ConfigNeedsUpdate(Config* config) {
   for (auto entry : *timestamps.AsMap()) {
     fs::path source_file_path = resolver->ResolvePath(entry.first);
     if (!fs::exists(source_file_path)) {
-      LOG(INFO) << "source file not exists: " << source_file_path.string();
+      LOG(INFO) << "source file no longer exists: " << source_file_path.string();
       return true;
     }
     auto value = As<ConfigValue>(entry.second);
     int recorded_time = 0;
     if (!value || !value->GetInt(&recorded_time) ||
         recorded_time != (int) fs::last_write_time(source_file_path)) {
-      LOG(INFO) << "timestamp mismatch: " << source_file_path.string();
+      LOG(INFO) << "source file changed: " << source_file_path.string();
       return true;
     }
   }