diff --git a/include/mbedtls/pk_internal.h b/include/mbedtls/pk_internal.h
index 48b7a5f..7288e9b 100644
--- a/include/mbedtls/pk_internal.h
+++ b/include/mbedtls/pk_internal.h
@@ -135,4 +135,8 @@
 extern const mbedtls_pk_info_t mbedtls_rsa_alt_info;
 #endif
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+extern const mbedtls_pk_info_t mbedtls_pk_opaque_psa_info;
+#endif
+
 #endif /* MBEDTLS_PK_WRAP_H */