diff --git a/programs/pkey/rsa_sign.c b/programs/pkey/rsa_sign.c
index 1cfa0a8..427554f 100644
--- a/programs/pkey/rsa_sign.c
+++ b/programs/pkey/rsa_sign.c
@@ -67,7 +67,7 @@
     char filename[512];
     mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
 
-    mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
+    mbedtls_rsa_init( &rsa );
 
     mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
     mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );