diff --git a/src/citron/updater/updater_dialog.cpp b/src/citron/updater/updater_dialog.cpp
index 87eb4cc48..42a93926d 100644
--- a/src/citron/updater/updater_dialog.cpp
+++ b/src/citron/updater/updater_dialog.cpp
@@ -374,7 +374,11 @@ void UpdaterDialog::ShowUpdateChecking() {}
 void UpdaterDialog::OnUpdateCheckCompleted(bool, const Updater::UpdateInfo&) {}
 void UpdaterDialog::OnUpdateDownloadProgress(int, qint64, qint64) {}
 void UpdaterDialog::OnUpdateInstallProgress(int, const QString&) {}
+#ifdef _WIN32
 void UpdaterDialog::OnUpdateCompleted(Updater::UpdaterService::UpdateResult, const QString&) {}
+#else
+void UpdaterDialog::OnUpdateCompleted(int, const QString&) {}
+#endif
 void UpdaterDialog::OnUpdateError(const QString&) {}
 void UpdaterDialog::OnDownloadButtonClicked() {}
 void UpdaterDialog::OnCancelButtonClicked() {}
@@ -391,7 +395,11 @@ void UpdaterDialog::ShowErrorState() {}
 void UpdaterDialog::UpdateDownloadProgress(int, qint64, qint64) {}
 void UpdaterDialog::UpdateInstallProgress(int, const QString&) {}
 QString UpdaterDialog::FormatBytes(qint64) const { return QString(); }
+#ifdef _WIN32
 QString UpdaterDialog::GetUpdateMessage(Updater::UpdaterService::UpdateResult) const { return QString(); }
+#else
+QString UpdaterDialog::GetUpdateMessage(int) const { return QString(); }
+#endif
 
 #include "updater_dialog.moc"
 
diff --git a/src/citron/updater/updater_dialog.h b/src/citron/updater/updater_dialog.h
index 2ea96a822..48489208e 100644
--- a/src/citron/updater/updater_dialog.h
+++ b/src/citron/updater/updater_dialog.h
@@ -6,31 +6,19 @@
 #include <memory>
 #include <QDialog>
 
-#ifdef _WIN32
 #include <QProgressBar>
 #include <QLabel>
 #include <QPushButton>
 #include <QTextBrowser>
 #include <QTimer>
 
+#ifdef _WIN32
 #include "citron/updater/updater_service.h"
 #else
 // Forward declarations for non-Windows platforms
 namespace Updater {
 struct UpdateInfo;
-class UpdaterService {
-public:
-    enum class UpdateResult {
-        Success,
-        Failed,
-        Cancelled,
-        NetworkError,
-        ExtractionError,
-        PermissionError,
-        InvalidArchive,
-        NoUpdateAvailable
-    };
-};
+class UpdaterService;
 }
 #endif
 
@@ -58,7 +46,11 @@ private slots:
     void OnUpdateCheckCompleted(bool has_update, const Updater::UpdateInfo& update_info);
     void OnUpdateDownloadProgress(int percentage, qint64 bytes_received, qint64 bytes_total);
     void OnUpdateInstallProgress(int percentage, const QString& current_file);
+#ifdef _WIN32
     void OnUpdateCompleted(Updater::UpdaterService::UpdateResult result, const QString& message);
+#else
+    void OnUpdateCompleted(int result, const QString& message);
+#endif
     void OnUpdateError(const QString& error_message);
 
     void OnDownloadButtonClicked();
@@ -80,7 +72,11 @@ private:
     void UpdateInstallProgress(int percentage, const QString& current_file);
 
     QString FormatBytes(qint64 bytes) const;
+#ifdef _WIN32
     QString GetUpdateMessage(Updater::UpdaterService::UpdateResult result) const;
+#else
+    QString GetUpdateMessage(int result) const;
+#endif
 
 private:
 #ifdef _WIN32