diff --git a/admin/survey/classes/class.SurveyCopy.php b/admin/survey/classes/class.SurveyCopy.php
index 18529e506..f27221104 100644
--- a/admin/survey/classes/class.SurveyCopy.php
+++ b/admin/survey/classes/class.SurveyCopy.php
@@ -1177,7 +1177,7 @@ class SurveyCopy {
 							$dest_value = "''";	
 			    		} 
                         // ce je polje NULL, ga moramo rocno nastavit na NULL
-                        elseif ( $row_src[$dest_field] === NULL && !isset($pre_set[$dest_field]) ) {
+                        elseif ( $row_src[$dest_field] === NULL ) {
 							$dest_value = "NULL";	
 			    		} 
                         else {