diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index bf24a98..2fc569c 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1973,13 +1973,11 @@
         mbedtls_ssl_suite_get_key_exchange( ciphersuite_info )
         == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
     {
-        uECC_Curve uecc_curve = uECC_secp256r1();
         ((void) ret);
 
         if( !uECC_shared_secret( ssl->handshake->ecdh_peerkey,
                                  ssl->handshake->ecdh_privkey,
-                                 ssl->handshake->premaster,
-                                 uecc_curve ) )
+                                 ssl->handshake->premaster ) )
         {
             return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
         }
@@ -2170,13 +2168,11 @@
         size_t zlen;
 
 #if defined(MBEDTLS_USE_TINYCRYPT)
-        uECC_Curve uecc_curve = uECC_secp256r1();
         ((void) ret);
 
         if( !uECC_shared_secret( ssl->handshake->ecdh_peerkey,
                                  ssl->handshake->ecdh_privkey,
-                                 p + 2,
-                                 uecc_curve ) )
+                                 p + 2 ) )
         {
             return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
         }