diff --git a/include/mbedtls/config_psa.h b/include/mbedtls/config_psa.h
index 756991a..60ed72c 100644
--- a/include/mbedtls/config_psa.h
+++ b/include/mbedtls/config_psa.h
@@ -222,24 +222,28 @@
 
 #if defined(PSA_WANT_KEY_TYPE_AES)
 #if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_AES)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_AES 1
 #define MBEDTLS_AES_C
 #endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_AES */
 #endif /* PSA_WANT_KEY_TYPE_AES */
 
 #if defined(PSA_WANT_KEY_TYPE_ARC4)
 #if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ARC4)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ARC4 1
 #define MBEDTLS_ARC4_C
 #endif /*!MBEDTLS_PSA_ACCEL_KEY_TYPE_ARC4 */
 #endif /* PSA_WANT_KEY_TYPE_ARC4 */
 
 #if defined(PSA_WANT_KEY_TYPE_CAMELLIA)
 #if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_CAMELLIA 1
 #define MBEDTLS_CAMELLIA_C
 #endif /*!MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA */
 #endif /* PSA_WANT_KEY_TYPE_CAMELLIA */
 
 #if defined(PSA_WANT_KEY_TYPE_DES)
 #if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DES)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DES 1
 #define MBEDTLS_DES_C
 #endif /*!MBEDTLS_PSA_ACCEL_KEY_TYPE_DES */
 #endif /* PSA_WANT_KEY_TYPE_DES */