diff --git a/lib/memcache/xcache.php b/lib/memcache/xcache.php
index 7e721313c5d..2dc4a3a6016 100644
--- a/lib/memcache/xcache.php
+++ b/lib/memcache/xcache.php
@@ -58,7 +58,7 @@ class XCache extends Cache {
 			return false;
 		}
 		if (!function_exists('xcache_unset_by_prefix') && ini_get('xcache.admin.enable_auth')) {
-			// We do not want to use xCache if we can not clear it without
+			// We do not want to use XCache if we can not clear it without
 			// using the administration function xcache_clear_cache()
 			// AND administration functions are password-protected.
 			return false;