diff --git a/library/rsa.c b/library/rsa.c
index 86bd71d..22880a2 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -2129,15 +2129,12 @@
 int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx,
                     int (*f_rng)(void *, unsigned char *, size_t),
                     void *p_rng,
-                    int mode,
                     mbedtls_md_type_t md_alg,
                     unsigned int hashlen,
                     const unsigned char *hash,
                     unsigned char *sig )
 {
     RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
     RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
                         hashlen == 0 ) ||
                       hash != NULL );
@@ -2147,14 +2144,14 @@
     {
 #if defined(MBEDTLS_PKCS1_V15)
         case MBEDTLS_RSA_PKCS_V15:
-            return mbedtls_rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, mode, md_alg,
-                                              hashlen, hash, sig );
+            return mbedtls_rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
+                                                      md_alg, hashlen, hash, sig );
 #endif
 
 #if defined(MBEDTLS_PKCS1_V21)
         case MBEDTLS_RSA_PKCS_V21:
-            return mbedtls_rsa_rsassa_pss_sign( ctx, f_rng, p_rng, mode, md_alg,
-                                        hashlen, hash, sig );
+            return mbedtls_rsa_rsassa_pss_sign( ctx, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
+                                                md_alg, hashlen, hash, sig );
 #endif
 
         default:
@@ -2714,7 +2711,7 @@
     }
 
     if( mbedtls_rsa_pkcs1_sign( &rsa, myrand, NULL,
-                                MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA1, 0,
+                                MBEDTLS_MD_SHA1, 0,
                                 sha1sum, rsa_ciphertext ) != 0 )
     {
         if( verbose != 0 )