diff --git a/library/psa_crypto_cipher.c b/library/psa_crypto_cipher.c
index 6c4150b..713c3d1 100644
--- a/library/psa_crypto_cipher.c
+++ b/library/psa_crypto_cipher.c
@@ -115,6 +115,9 @@
         case PSA_KEY_TYPE_AES:
             cipher_id_tmp = MBEDTLS_CIPHER_ID_AES;
             break;
+        case PSA_KEY_TYPE_ARIA:
+            cipher_id_tmp = MBEDTLS_CIPHER_ID_ARIA;
+            break;
         case PSA_KEY_TYPE_DES:
             /* key_bits is 64 for Single-DES, 128 for two-key Triple-DES,
              * and 192 for three-key Triple-DES. */