diff --git a/ChangeLog b/ChangeLog
index d1f49d4d2f..105e2d8f28 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -9,6 +9,7 @@ phpMyAdmin - ChangeLog
 - bug #4753 Normal field and multi-line field have different margins
 - bug #4760 Cannot re-import settings from local storage
 - bug #4778 SQL error when database list is sorted by additional columns
+- bug #4780 Notice when timestamp column does not have default value
 
 4.3.10.0 (2015-02-20)
 - bug       Undefined index navwork
diff --git a/libraries/Util.class.php b/libraries/Util.class.php
index 4560ceffdc..40eaf0f567 100644
--- a/libraries/Util.class.php
+++ b/libraries/Util.class.php
@@ -3701,7 +3701,8 @@ class PMA_Util
             && empty($field['Default'])
             && empty($data)
             && ! isset($analyzed_sql_field_array['on_update_current_timestamp'])
-            && ($analyzed_sql_field_array['default_value'] != 'NULL')
+            && ! (isset($analyzed_sql_field_array['default_value'])
+            && $analyzed_sql_field_array['default_value'] == 'NULL')
         ) {
             $default_function = $cfg['DefaultFunctions']['first_timestamp'];
         }