diff --git a/kernel/classes/datatypes/ezobjectrelationlist/ezobjectrelationlisttype.php b/kernel/classes/datatypes/ezobjectrelationlist/ezobjectrelationlisttype.php
index ce2085c6cd8..7246cd884bc 100644
--- a/kernel/classes/datatypes/ezobjectrelationlist/ezobjectrelationlisttype.php
+++ b/kernel/classes/datatypes/ezobjectrelationlist/ezobjectrelationlisttype.php
@@ -71,7 +71,8 @@ function validateObjectAttributeHTTPInput( $http, $base, $contentObjectAttribute
             // If in browse mode and relations have been added using the search field
             // items are stored in the post variable
             if (
-                $http->postVariable( $postVariableName ) != array( "no_relation" )
+                $http->hasPostVariable( $postVariableName )
+                && $http->postVariable( $postVariableName ) != array( "no_relation" )
                 && count( $http->postVariable( $postVariableName ) ) > 0
             )
             {