diff --git a/src/single_window/render.cpp b/src/single_window/render.cpp
index 4dc7f43..33ace41 100644
--- a/src/single_window/render.cpp
+++ b/src/single_window/render.cpp
@@ -1285,13 +1285,9 @@ void Render::ProcessSdlEvent() {
           if (stream_window_ &&
               SDL_GetWindowID(stream_window_) == event.window.windowID) {
             foucs_on_stream_window_ = focus_gained;
-            LOG_INFO("{} focus on stream window",
-                     focus_gained ? "Gained" : "Lost");
           } else if (main_window_ &&
                      SDL_GetWindowID(main_window_) == event.window.windowID) {
             foucs_on_main_window_ = focus_gained;
-            LOG_INFO("{} focus on main window",
-                     focus_gained ? "Gained" : "Lost");
           }
         }
         break;
diff --git a/src/single_window/thumbnail.cpp b/src/single_window/thumbnail.cpp
index 557a42f..c3ad6bc 100644
--- a/src/single_window/thumbnail.cpp
+++ b/src/single_window/thumbnail.cpp
@@ -260,7 +260,8 @@ int Thumbnail::DeleteThumbnail(const std::string& filename_keyword) {
   for (const auto& entry : std::filesystem::directory_iterator(image_path_)) {
     if (entry.is_regular_file()) {
       const std::string filename = entry.path().filename().string();
-      if (filename.find(filename_keyword) != std::string::npos) {
+      std::string id_hostname = filename_keyword.substr(0, filename.find('@'));
+      if (filename.find(id_hostname) != std::string::npos) {
         std::filesystem::remove(entry.path());
       }
     }