-

diff --git a/api/v3/Navigation.php b/api/v3/Navigation.php
index c117fe8..b16b9a6 100644
--- a/api/v3/Navigation.php
+++ b/api/v3/Navigation.php
@@ -106,6 +106,7 @@ function _civicrm_api3_navigation_create_spec(&$params) {
  *   API result array.
  */
 function civicrm_api3_navigation_create($params) {
+  civicrm_api3_verify_one_mandatory($params, NULL, array('name'));
   return _civicrm_api3_basic_create(_civicrm_api3_get_BAO(__FUNCTION__), $params);
 }
 
diff --git a/api/v3/PrintLabel.php b/api/v3/PrintLabel.php
index dc38319..083b993 100644
--- a/api/v3/PrintLabel.php
+++ b/api/v3/PrintLabel.php
@@ -39,6 +39,7 @@
  * @return array
  */
 function civicrm_api3_print_label_create($params) {
+  civicrm_api3_verify_one_mandatory($params, NULL, array('name'));
   return _civicrm_api3_basic_create(_civicrm_api3_get_BAO(__FUNCTION__), $params);
 }
 
diff --git a/api/v3/RecurringEntity.php b/api/v3/RecurringEntity.php
index eba9879..36868dc 100644
--- a/api/v3/RecurringEntity.php
+++ b/api/v3/RecurringEntity.php
@@ -66,6 +66,7 @@ function _civicrm_api3_recurring_entity_get_spec(&$params) {
  * @return array
  */
 function civicrm_api3_recurring_entity_create($params) {
+  civicrm_api3_verify_one_mandatory($params, NULL, array('entity_id', 'entity_table'));
   return _civicrm_api3_basic_create(_civicrm_api3_get_BAO(__FUNCTION__), $params);
 }