diff --git a/services/backup/src/DatabaseEntities/BackupItem.h b/services/backup/src/DatabaseEntities/BackupItem.h
--- a/services/backup/src/DatabaseEntities/BackupItem.h
+++ b/services/backup/src/DatabaseEntities/BackupItem.h
@@ -73,7 +73,7 @@
   std::string getCompactionHolder() const;
   std::string getAttachmentHolders() const;
 
-  void appendAttachmentHolder(const std::string &attachmentHolder);
+  void addAttachmentHolders(const std::string &attachmentHolders);
 };
 
 } // namespace database
diff --git a/services/backup/src/DatabaseEntities/BackupItem.cpp b/services/backup/src/DatabaseEntities/BackupItem.cpp
--- a/services/backup/src/DatabaseEntities/BackupItem.cpp
+++ b/services/backup/src/DatabaseEntities/BackupItem.cpp
@@ -1,7 +1,7 @@
 #include "BackupItem.h"
 
 #include "Constants.h"
-#include "GlobalConstants.h"
+#include "Tools.h"
 
 namespace comm {
 namespace network {
@@ -112,9 +112,9 @@
   return this->attachmentHolders;
 }
 
-void BackupItem::appendAttachmentHolder(const std::string &attachmentHolder) {
-  this->attachmentHolders += attachmentHolder;
-  this->attachmentHolders += ATTACHMENT_DELIMITER;
+void BackupItem::addAttachmentHolders(const std::string &attachmentHolders) {
+  this->attachmentHolders +=
+      tools::validateAttachmentHolders(attachmentHolders);
 }
 
 } // namespace database
diff --git a/services/backup/src/DatabaseEntities/LogItem.h b/services/backup/src/DatabaseEntities/LogItem.h
--- a/services/backup/src/DatabaseEntities/LogItem.h
+++ b/services/backup/src/DatabaseEntities/LogItem.h
@@ -56,7 +56,7 @@
   std::string getValue() const;
   std::string getAttachmentHolders() const;
 
-  void appendAttachmentHolder(const std::string &attachmentHolder);
+  void addAttachmentHolders(const std::string &attachmentHolders);
 };
 
 } // namespace database
diff --git a/services/backup/src/DatabaseEntities/LogItem.cpp b/services/backup/src/DatabaseEntities/LogItem.cpp
--- a/services/backup/src/DatabaseEntities/LogItem.cpp
+++ b/services/backup/src/DatabaseEntities/LogItem.cpp
@@ -1,7 +1,7 @@
 #include "LogItem.h"
 
 #include "Constants.h"
-#include "GlobalConstants.h"
+#include "Tools.h"
 
 #include <stdexcept>
 
@@ -105,9 +105,9 @@
   return this->attachmentHolders;
 }
 
-void LogItem::appendAttachmentHolder(const std::string &attachmentHolder) {
-  this->attachmentHolders += attachmentHolder;
-  this->attachmentHolders += ATTACHMENT_DELIMITER;
+void LogItem::addAttachmentHolders(const std::string &attachmentHolders) {
+  this->attachmentHolders +=
+      tools::validateAttachmentHolders(attachmentHolders);
 }
 
 } // namespace database