diff --git a/include/class.dynamic_forms.php b/include/class.dynamic_forms.php
index c672d92e2f554f4f5e18c4cd0c476652c7db9d85..513f014c95c71bdbab77ef2993eb7c2e9a2c9a69 100644
--- a/include/class.dynamic_forms.php
+++ b/include/class.dynamic_forms.php
@@ -1413,6 +1413,12 @@ class DynamicFormEntryAnswer extends VerySimpleModel {
         $this->getField()->db_cleanup();
         return true;
     }
+
+    function save($refetch) {
+        if ($this->dirty)
+            unset($this->_value);
+        return parent::save($refetch);
+    }
 }
 
 class SelectionField extends FormField {