diff --git a/ChangeLog b/ChangeLog
index e8aaadfcd0..0e76d8c185 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -93,6 +93,7 @@ VerboseMultiSubmit, ReplaceHelpImg
 - bug #3598736 [routines] Editing a procedure with special characters
 - bug #3600322 [core] Visualize GIS data throws Fatal Error
 - bug #3599362 [core] Double-escaped error message
+- bug #3776 [cookies] Login without auth on second server
 
 3.5.5.0 (2012-12-21)
 - bug #3563824 [export] Support Apache's mod_deflate
diff --git a/libraries/Config.class.php b/libraries/Config.class.php
index 33fc5a5d0e..34c02c9262 100644
--- a/libraries/Config.class.php
+++ b/libraries/Config.class.php
@@ -1755,7 +1755,7 @@ class PMA_Config
         if (! isset($_COOKIE[$cookie]) || $_COOKIE[$cookie] !== $value) {
             // set cookie with new value
             /* Calculate cookie validity */
-            if ($validity == null) {
+            if ($validity === null) {
                 $validity = time() + 2592000;
             } elseif ($validity == 0) {
                 $validity = 0;