diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index ed3aec7..2f5ec01 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -775,6 +775,7 @@
  * \retval #PSA_ERROR_INSUFFICIENT_STORAGE
  * \retval #PSA_ERROR_COMMUNICATION_FAILURE
  * \retval #PSA_ERROR_HARDWARE_FAILURE
+ * \retval #PSA_ERROR_STORAGE_FAILURE
  * \retval #PSA_ERROR_CORRUPTION_DETECTED
  */
 psa_status_t psa_copy_key(psa_key_handle_t source_handle,