diff --git a/lib/libimhex/source/api/achievement_manager.cpp b/lib/libimhex/source/api/achievement_manager.cpp
index 8d3d050f6..41c53c383 100644
--- a/lib/libimhex/source/api/achievement_manager.cpp
+++ b/lib/libimhex/source/api/achievement_manager.cpp
@@ -218,7 +218,7 @@ namespace hex {
         for (const auto &directory : fs::getDefaultPaths(fs::ImHexPath::Config)) {
             auto path = directory / AchievementsFile;
 
-            wolv::io::File file(path, wolv::io::File::Mode::Create);
+            wolv::io::File file(path, wolv::io::File::Mode::Write);
 
             if (!file.isValid()) {
                 continue;
@@ -234,7 +234,9 @@ namespace hex {
                 }
             }
 
-            file.writeString(json.dump(4));
+            auto result = json.dump(4);
+            file.setSize(0);
+            file.writeString(result);
             break;
         }
     }
diff --git a/main/gui/source/init/tasks.cpp b/main/gui/source/init/tasks.cpp
index b9b7b2c25..ecc3ca3cc 100644
--- a/main/gui/source/init/tasks.cpp
+++ b/main/gui/source/init/tasks.cpp
@@ -318,6 +318,7 @@ namespace hex::init {
     bool storeSettings() {
         try {
             ContentRegistry::Settings::impl::store();
+            AchievementManager::storeProgress();
         } catch (std::exception &e) {
             log::error("Failed to store configuration! {}", e.what());
             return false;