diff --git a/src/repo/includes/objects/Archive.h b/src/repo/includes/objects/Archive.h
index cde078c..632691a 100644
--- a/src/repo/includes/objects/Archive.h
+++ b/src/repo/includes/objects/Archive.h
@@ -10,7 +10,7 @@
 #include "../Object.h"
 
 /// Object representing a backup
-class Archive : public Object {
+class Archive final : public Object {
 public:
     Archive(Object::idType id, std::string name, unsigned long long mtime, std::vector<idType> files);
 
diff --git a/src/repo/includes/objects/Chunk.h b/src/repo/includes/objects/Chunk.h
index 79eb26e..47a6cb8 100644
--- a/src/repo/includes/objects/Chunk.h
+++ b/src/repo/includes/objects/Chunk.h
@@ -11,7 +11,7 @@
 #include "../Object.h"
 
 /// Object representing a part of a File
-class Chunk : public Object {
+class Chunk final : public Object {
 public:
     Chunk(idType id, std::string, std::vector<char> data);
 
diff --git a/src/repo/includes/objects/File.h b/src/repo/includes/objects/File.h
index d4cbeeb..473fb39 100644
--- a/src/repo/includes/objects/File.h
+++ b/src/repo/includes/objects/File.h
@@ -15,7 +15,7 @@
 #include "../Object.h"
 
 /// Object representing a saved file
-class File : public Object {
+class File final : public Object {
 public:
     enum class Type { Normal, Symlink, Directory, END };