diff --git a/webform_iban_field.module b/webform_iban_field.module
index d86a3fd..a16c697 100644
--- a/webform_iban_field.module
+++ b/webform_iban_field.module
@@ -13,7 +13,7 @@ function webform_iban_field_libraries_info() {
     'name' => 'PHP IBAN',
     'vendor url' => 'https://github.com/globalcitizen/php-iban',
     'download url' => 'https://github.com/globalcitizen/php-iban/releases',
-    'version callback' => 'iban_validator_get_library_version',
+    'version callback' => 'webform_iban_field_get_library_version',
     'files' => array(
       'php' => array(
         'php-iban.php',