diff --git a/library/Icinga/Config/PreservingIniWriter.php b/library/Icinga/Config/PreservingIniWriter.php
index 2cafd5416..c459471a4 100644
--- a/library/Icinga/Config/PreservingIniWriter.php
+++ b/library/Icinga/Config/PreservingIniWriter.php
@@ -101,7 +101,7 @@ class PreservingIniWriter extends Zend_Config_Writer_FileAbstract
         $this->_config = $this->normalizeKeys($this->_config);
 
         $newconfig = $this->_config;
-        $editor = new IniEditor(file_get_contents($this->_filename), $this->options);
+        $editor = new IniEditor(@file_get_contents($this->_filename), $this->options);
         $this->diffConfigs($oldconfig, $newconfig, $editor);
         $this->updateSectionOrder($newconfig, $editor);
         return $editor->getText();