diff --git a/src/Managers/BackupManager.h b/src/Managers/BackupManager.h
index f165f23..bc6a438 100644
--- a/src/Managers/BackupManager.h
+++ b/src/Managers/BackupManager.h
@@ -32,7 +32,7 @@ namespace mbst { namespace Managers {
 
 class BackupManager {
     public:
-        BackupManager();
+        explicit BackupManager();
 
         auto lastError() -> Containers::StringView;