diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 1e6e052..1209b83 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1264,7 +1264,7 @@
  *
  * This is only meaningful when building the library as part of a
  * multi-client service. When you activate this option, you must provide
- * an implementation of the type psa_key_owner_id_t and a translation
+ * an implementation of the type mbedtls_key_owner_id_t and a translation
  * from psa_key_file_id_t to file name in all the storage backends that
  * you wish to support.
  *
diff --git a/include/psa/crypto_platform.h b/include/psa/crypto_platform.h
index 0bebb08..5e6180e 100644
--- a/include/psa/crypto_platform.h
+++ b/include/psa/crypto_platform.h
@@ -52,7 +52,7 @@
 #if defined(PSA_CRYPTO_SECURE)
 /* Building for the PSA Crypto service on a PSA platform. */
 /* A key owner is a PSA partition identifier. */
-typedef int32_t psa_key_owner_id_t;
+typedef int32_t mbedtls_key_owner_id_t;
 #endif
 
 #endif /* MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER */
diff --git a/include/psa/crypto_types.h b/include/psa/crypto_types.h
index a8becb7..753fd30 100644
--- a/include/psa/crypto_types.h
+++ b/include/psa/crypto_types.h
@@ -262,7 +262,7 @@
 typedef struct
 {
     psa_key_id_t key_id;
-    psa_key_owner_id_t owner;
+    mbedtls_key_owner_id_t owner;
 } psa_key_file_id_t;
 
 #define PSA_KEY_ID_INIT {0, 0}
@@ -274,7 +274,7 @@
  * \param key_id   Identifier of the key.
  */
 static inline psa_key_file_id_t psa_key_file_id_make(
-    psa_key_owner_id_t owner_id, psa_key_id_t key_id )
+    mbedtls_key_owner_id_t owner_id, psa_key_id_t key_id )
 {
     return( (psa_key_file_id_t){ .key_id = key_id,
                                  .owner = owner_id } );