diff --git a/phpBB/includes/cache/driver/file.php b/phpBB/includes/cache/driver/file.php
index e26fecf534..73eaff25bd 100644
--- a/phpBB/includes/cache/driver/file.php
+++ b/phpBB/includes/cache/driver/file.php
@@ -88,11 +88,11 @@ class phpbb_cache_driver_file extends phpbb_cache_driver_base
 			if (!phpbb_is_writable($this->cache_dir))
 			{
 				// We need to use die() here, because else we may encounter an infinite loop (the message handler calls $cache->unload())
-				die($this->cache_dir . ' is NOT writable.');
+				die('Fatal: ' . $this->cache_dir . ' is NOT writable.');
 				exit;
 			}
 
-			die('Not able to open ' . $this->cache_dir . 'data_global.' . $phpEx);
+			die('Fatal: Not able to open ' . $this->cache_dir . 'data_global.' . $phpEx);
 			exit;
 		}