1 files changed, 1 insertions, 1 deletions
diff --git a/index.php b/index.php
index cfef21189..1b4fbf81b 100644
--- a/index.php
+++ b/index.php
@@ -64,7 +64,7 @@ function handleError($error)
 function main()
 {
     // quick check for fancy URL auto-detection support in installer.
-    if ('/check-fancy' === $_SERVER['REDIRECT_URL']) {
+    if (isset($_SERVER['REDIRECT_URL']) && ('/check-fancy' === $_SERVER['REDIRECT_URL'])) {
         die("Fancy URL support detection succeeded. We suggest you enable this to get fancy (pretty) URLs.");
     }
     global $user, $action, $config;