diff --git a/src/hsm/cmd_cipher_sym.c b/src/hsm/cmd_cipher_sym.c
index 3d51e2e..e25e14d 100644
--- a/src/hsm/cmd_cipher_sym.c
+++ b/src/hsm/cmd_cipher_sym.c
@@ -308,6 +308,9 @@ int cmd_cipher_sym() {
             mbedtls_platform_zeroize(kdata, sizeof(kdata));
             mbedtls_chachapoly_free(&ctx);
             if (r != 0) {
+                if (r == MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED) {
+                    return SW_WRONG_DATA();
+                }
                 return SW_EXEC_ERROR();
             }
             if (algo == ALGO_EXT_CIPHER_ENCRYPT) {