diff --git a/setup/backup.class.inc.php b/setup/backup.class.inc.php
index 92bc7b2cc..1ec7c7ada 100644
--- a/setup/backup.class.inc.php
+++ b/setup/backup.class.inc.php
@@ -251,6 +251,8 @@ class DBBackup
 		$aExtraFiles = MetaModel::GetModuleSetting('itop-backup', 'extra_files', []);
 		foreach($aExtraFiles as $sExtraFileOrDir)
 		{
+			if(!file_exists(APPROOT.'/'.$sExtraFileOrDir)) continue; // Ignore non-existing files
+
 			$sExtraFullPath = realpath(APPROOT.'/'.$sExtraFileOrDir);
 			if (strncmp(APPROOT, $sExtraFullPath, strlen(APPROOT)) !== 0)
 			{
diff --git a/test/setup/DBBackupDataTest.php b/test/setup/DBBackupDataTest.php
index af9595445..02ec0734a 100644
--- a/test/setup/DBBackupDataTest.php
+++ b/test/setup/DBBackupDataTest.php
@@ -69,6 +69,7 @@ class DBBackupDataTest extends ItopDataTestCase
 			'no_extra_file' => ['aExtraFiles' => [], false],
 			'one_extra_file' => ['aExtraFiles' => ['foo.txt' => true], false],
 			'three_extra_file_and_dir' => ['aExtraFiles' => ['foo.txt' => true, 'gabu/zomeu.xml' => true, 'meuh.html' => true], false],
+			'two_extra_file_but_only_one_exists' => ['aExtraFiles' => ['foo.txt' => true, 'meuh.html' => false], false],
 			'one_unsafe_file' => ['aExtraFiles' => ['../foo.txt' => true], true],
 		];
 	}