diff --git a/library/psa_crypto_se.h b/library/psa_crypto_se.h
index 67fadf8..7104261 100644
--- a/library/psa_crypto_se.h
+++ b/library/psa_crypto_se.h
@@ -155,6 +155,13 @@
  *
  * \param driver        The driver table entry containing the persistent
  *                      data to load from storage.
+ *
+ * \return #PSA_SUCCESS
+ * \return #PSA_ERROR_NOT_SUPPORTED
+ * \return #PSA_ERROR_DOES_NOT_EXIST
+ * \return #PSA_ERROR_STORAGE_FAILURE
+ * \return #PSA_ERROR_DATA_CORRUPT
+ * \return #PSA_ERROR_INVALID_ARGUMENT
  */
 psa_status_t psa_load_se_persistent_data(
     const psa_se_drv_table_entry_t *driver );
@@ -163,6 +170,14 @@
  *
  * \param[in] driver    The driver table entry containing the persistent
  *                      data to save to storage.
+ *
+ * \return #PSA_SUCCESS
+ * \return #PSA_ERROR_NOT_SUPPORTED
+ * \return #PSA_ERROR_NOT_PERMITTED
+ * \return #PSA_ERROR_NOT_SUPPORTED
+ * \return #PSA_ERROR_INSUFFICIENT_STORAGE
+ * \return #PSA_ERROR_STORAGE_FAILURE
+ * \return #PSA_ERROR_INVALID_ARGUMENT
  */
 psa_status_t psa_save_se_persistent_data(
     const psa_se_drv_table_entry_t *driver );