diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 5296202..804bd34 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -422,7 +422,14 @@
 {
     attributes->core.lifetime = lifetime;
     if( lifetime == PSA_KEY_LIFETIME_VOLATILE )
+    {
+#ifdef MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER
+        attributes->core.id.key_id = 0;
+        attributes->core.id.owner = 0;
+#else
         attributes->core.id = 0;
+#endif
+    }
 }
 
 static inline psa_key_lifetime_t psa_get_key_lifetime(