diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
index e8241a3..0941458 100644
--- a/programs/x509/cert_req.c
+++ b/programs/x509/cert_req.c
@@ -346,7 +346,8 @@
     mbedtls_printf( "  . Loading the private key ..." );
     fflush( stdout );
 
-    ret = mbedtls_pk_parse_keyfile( &key, opt.filename, opt.password );
+    ret = mbedtls_pk_parse_keyfile( &key, opt.filename, opt.password,
+                                    mbedtls_ctr_drbg_random, &ctr_drbg );
 
     if( ret != 0 )
     {