diff --git a/CHANGELOG.md b/CHANGELOG.md
index da670616..6d63471c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ before starting to add changes. Use example [placed in the end of the page](#exa
 
 ## [Unreleased]
 
+- CprFetchData adding ajax error fix
+
 ## [3.14.0]
 
 - [OS-64] Setting a standard value for Automatic purge [#80](https://github.com/OS2Forms/os2forms/pull/80)
diff --git a/modules/os2forms_nemid/src/Element/NemidCprFetchData.php b/modules/os2forms_nemid/src/Element/NemidCprFetchData.php
index 8906b980..5b31c415 100644
--- a/modules/os2forms_nemid/src/Element/NemidCprFetchData.php
+++ b/modules/os2forms_nemid/src/Element/NemidCprFetchData.php
@@ -15,8 +15,10 @@ class NemidCprFetchData extends CompositeFetchDataBase {
   public static function getCompositeElements(array $element) {
     $elements = parent::getCompositeElements($element);
 
-    // Pattern for CPR.
-    $elements[self::getValueElementName()]['#pattern'] = '\d{6}(-)?\d{4}';
+    if ($element) {
+      // Pattern for CPR.
+      $elements[static::getValueElementName()]['#pattern'] = '\d{6}(-)?\d{4}';
+    }
 
     return $elements;
   }